What year and engine and transmission are you looking for?
The 2015 and 2016 still had the normally aspirated (non turbo) 2.4 L engine.
The 2015 was the first year for the CVT (some say Honda and Toyota are the only ones who make a reliable CVT) but 2015 had a design problem with the engine causing vibration in the cab, and also the rear-end had vibration problems (actually at 3 different speed ranges) look on Youtube about it. There is a fix for the engine vibration problem but is is a technical service bulletin, not a recall, so Honda will not pay for it if you already own the vehicle. If you buy a Honda Certified used vehicle from a Honda dealer they will do the TSB before selling it, but there still is nothing to fix the rear-end vibration problems on the 2015. The TSB for the engine involves putting new rubber spacer mounts on the radiator. The vibration in the rear end does not have any TSB or recall on it to fix it, but the 2016 and newer had been redesigned so the engine and rear end does not vibrate (as often) but it still can, but extremely rarely, and not anywhere as bad or as long as the 2015. I bought a 2016 with 19,788 miles on it on Feb 18, 2020 and the rear end vibrated once a couple of days after I bought it, but the rear end was also out of alignment just slightly enough to be out of speck and cause the vehicle to slightly pull to the left only noticeable on long straight roads which is why I did not find it on the test drive. I had the Honda dealer align it the next week, and it does not pull, and has never vibrated again, and I have put 1,100 miles on it since then.
The base stripped down version model LX of 2017 ( and maybe the 2018 and 2019, I do not know for sure) still had the 2.4 L normally aspirated (non turbo) , but the higher end models EX, EXL, and Touring of the 2017 and newer have the 1.5 L turbo. Now even the base model of the 2020 has the 1.5 L turbo.
Supposably, the fuel dilution problem is fixed in the 2019 and newer models, but there have been some electrical problems with the 2019 models (discharging the battery completely in less than a day). Check the Honda CR-V forums to see what years have what problems.
The fuel dilution problem is said to happen if you always short trip the vehicle (never drive it long enough for the oil to get hot), and live in cold climates. So short trips in the winter are bad for it.
Also there are some who complain that the 1.5 L takes way too long to get enough heat into the cab in the winter. So there may be problems defrosting the windows and heating the cab, but I do not know for sure about this.
For me I narrowed it down to 2016 being the year I wanted because it has the 2.4 (non trubo) and the engine and rear end vibration problems are mostly fixed. ( The engine will idle slightly rough if all the loads are light, it will go into lower RPM idle if head-lights are off, and fan is not at high speed, and AC is off), but even then is not that much of a vibration. I always drive with the head-light on so I never have any problems with it.
Some say the charging system on Honda CR-Vs takes too long to recharge the battery after you start it in order to conserve fuel, but if you turn on any decent load such as the head lights, or fan on high, or AC then it puts the alternator at the higher 14 volts output and the battery will recharge faster. Again, I always drive with the head-lights on so this is not a problem for me, but almost all of my trips are for at least 30 minutes so even if I left the head-lights off it would not be a problem.
You should change the CV-T fluid every 30 K miles (25 K miles if severe), and the rear end fluid every 15 K miles ( but in light service without many turns like a lot of highway you could go every 20 K miles ). There is a Youtube that if you let the rear-end fluid go too long without changing it the rear end could chatter in turns, and if that happens to change the fluid and then drive backwards making left and right circles for a while to get the rear-end to work proper again.
There are Youtube videos of how to change the engine oil and filter, CVT fluid, and rear end fluid on Honda CR-Vs. They are all super easy to do on a Honda CR-V. One thing, if you do it yourself you definitely want to use a torque wrench set to the correct torque for what ever you are tightening, and new crush washers. All the threads are aluminum. With a torque wrench, and new crush-wasers they should easily last the life of the vehicle, but abuse aluminum threads and you could have problems. NAPA sells good low cost non-electric torque wrenchs in 3/8 and 1/2 drive. I keep a 1/2 inch torque wrench with short extension and socket wrapped in a small rug next to the spare tire to torque the lug nuts to 80 Lb/Ft if I ever have to change to the spare. Be sure to always put your torque wrench at 0 when not in use so you do not keep stress on the spring in them. Some say the disks on the brakes on Hondas can be warped if you over tighten the lug nuts. I do not know if that is true, but why take the chance.
There is a Car-Fax used car web site you can search for used vehicles on and they will have free Car-Fax reports. Auto-trader is an other good site to search on but only about 1/2 of there vehicles have free Car-Fax reports. I only looked at vehicles that had Car-Fax reports that showed regular oil and filter changes. I did not want to take the chance of buying a vehicle that someone did not change the oil and filter on often enough.
Check out the different Honda CR-V forums, and look at the post for the year of vehicle you are interested in.
Check out Wikipedia Honda CR-V there are different generations for vehicles where the vehicle is basically the same for several years that is called a generation. In general you do not want to buy the first years of any generation but the last couple of years of a generation the problems usually have been found and fixed before the vehicle was made.
If you really do your research you will come to the conclusion that all brands of vehicles have problems. Some more severe and or more common than others.
For me the 2016 model year CR-V was a good choice after researching other makes and models, and then the different years of the CR-V.