Users are reporting improved mechanical accuracy via the new barrel, and easier to shoot well due to the improved trigger.
Most seem to like the flared mag well. lefty's will benefit from the ambi slide release.
Its about 50/50 like or hate the returned crescent cut on the front strap but this only applies to the shorter grip 19.
If you are going to buy a new Glock in 9mm it makes sense to get the GEN 5 but no major reason to give up a proven GEN 3 or GEN 4 for one IMO.
