100 Federal Champion 115gr
100 WWB 115gr
70 Federal 147gr HP Hi-Shock (9MS)
~15 Hornady Critical Defense 115gr
~15-20 Winchestwr Ranger 124gr +P

No malfunctions. The 147gr HPs were most accurate for me, BUT they're what I shoot the most by far. I didn't really shoot enough left over Critical Defense (what I shot in my PF9) and Ranger +P to have an opinion on them.
Note: sometimes when I hand rack it a bit slowly, the slide gets caught on something and doesn't fully go forward (left with the recoil rod hanging out). A slight push and it closes. No problems when firing or slamming it closed. Can barely (sometimes) get the slide to push back a bit and stay--as with almost all autos).