My first pistol was a PX4 Compact in 9mm. I loved that gun...
At the time, unfortunately, (or fortunately) I test-fired a Sig P228R and fell in love with it, and with my financials that only way to get a new pistol was to trade...I ended up trading my PX4 for said Sig.
I've never regretted it, Sigs are beautiful weapons, but someday I would like to buy another PX4. For the requirements you have, I don't think you can go wrong with it.