I've been doing a lot of research on Meguiar's Ultimate Fast Finish over the past 24 hours or so and it seems to be getting some very positive feedback and I am hoping to make a trip to the Walmart in Niagara Falls, NY tomorrow afternoon so I can pick up a can and try it for myself! (it's not sold in Canada yet)
This stuff is supposedly Meguiar's longest lasting sealant, they claim one year but that's probably not realistic. Even if it only lasts a month or two though, it's super cheap ($12.97 at Walmart) and it only takes about 10-15 minutes to apply. You just spray it onto a microfiber towel (or sponge), wipe it onto a section of your paint and spread it around, and then immediately buff off any of the excess flashing that might be left behind (it's kinda like the application process of some ceramic coatings but less finicky). From the videos I have seen this stuff is very hydrophobic as well, the water just slides off very easily, so this stuff should help the finish look cleaner a bit longer too. I saw one video where the guy put it on half of his car that was sitting inside his shop and a few days later there was a thin layer of dust on the side that he did not put this stuff on, but on the side he treated it with, there was no dust! I have heard feedback saying it protected their paint from being etched after a huge bird bomb, and others mentioning that water spots did not etch the paint either. So this stuff appears to provide a true layer of protection! It might not be as glossy as some true waxes though, but if you clay the finish beforehand and then go over the finish with a good polish, then it should already look nice and shiny at this point and will just need protecting. Then use your favorite detailing spray afterwards to add a bit more gloss if you wish.
I like the idea of a product like this compared to your typical sealants, because I feel the typical sealants have an application process which can introduce more scratches and swirls just by the way you need to put a bit of effort into putting it on and then buffing off the dried up haze. With a spray on sealant you use very little pressure when applying it and you just lightly buff off the leftover residue.
I think these types of products are going to become even more popular as time goes on. Who wants to spend 15-20 minutes applying a wax, then waiting another 15-20 minutes for it to fully dry, and then another 15-20 minutes buffing it off when you can do the entire process in just 10-15 minutes? (and get the same level of protection too)