I owned one for a short while. I thought the ergos were pretty nice, and it shot well enough, but wasn't without issues.
Firstly, the white part of the front sight peeled off about the third time I holstered it. Not the biggest deal in the world, but definitely poor QC.
Also, the rear sight was way (WAY) too sharp. I checked my hip a few different times, convinced it must have drawn blood. How hard would it have been to design the rear sight with a slightly rounded edge?
Those minor issues, combined with the utter lack of a holster or accessory market, convinced me to sell it and buy a G19. No regrets.