Had a few concerns about compatibility issues with .223 Wylde chambering, but it cycles fairly well with bulk 22LR ammo -- unless you really push it to shoot very fast. Then you have a few FTEs along the way. Shooting CCI Mini-Mags in this setup is the perfect diet if you really want to shoot very fast cyclic rates and avoid any FTF or FTE issues. Other than that, this morning I shot about 300rds of Thunderbolt bulk at a leisurely pace and it didn't hiccup once.
It's not a very high-end pistol, and I bought is just for fun -- never intending it to be a critical home defense or personal protection firearm. As an AR training aid it's perfect.