I've seen a number of them at PBI. Spoke with the crew of an early model. He mentioned some weight limitations that were overcome in the later "Elite" models.
I clearly recall all the claims of better efficiency, more speed, more range, more efficient engines and so on. None of those things were true. Aviation is a well refined science and we've known for some time how to build fast and efficient aircraft. The Citation Mustang, based on a decades old design is in many ways a better and more capable/faster aircraft.
The best that can be said about the Honda Jet is that it finally, after a number of upgrades, comes close to the competition.