My g44 will run federal 36 grain bulk pretty reliably.  It runs stinger and maxi mags with 100 percent reliability so far.  I havent cleaned or disassembled the gun and it's still going strong.   32 36 and 40 grain ammo seems to all be fine.  At 1500 rounds and a filthy gun I expected lots of problems but so far I havent experienced them.  I assume after I clean and lubes the gun it will be even more reliable.  Is the gun worth the money?  If you shoot glocks I would say definitely.  It's a great training tool