Was my primary carry for about a year before I realized I could get away with a G19 which was easier to do just about everything with. I got a lot of compliments like "you shoot that little gun really well," and similar. Particularly when taking advanced level classes with it where everyone else was running full-size, open carry type rigs that couldn't be concealed easily.
The PPS is great, though I dislike the magazines. The dot on the front sight is recessed, so it can get filled with leather/powder residue/dirt. I filled mine in with orange acrylic paint which doubled as an upgrade to my sight acquisition time. Never did end up getting night sights for it, too hard to find a good deal on, but Trijicon HDs are available now so at least there is a good option. Highly recommend the large backstrap; in addition to feeling better, with the small one in place my palm would stop magazines from dropping free. With the large, my palm is a smidge further away allowing the magazines to reliably drop free. Be cautious on speed reloads, I got more than one blood blister. The trigger gets significantly better after 1,000 rounds or so. I'll never get rid of mine, but it hasn't been out of the safe since I started carrying my Glock; there's been no situation where I can't conceal the G19 AIWB but could conceal the PPS. It is straight to the J-frame in those situations.
Oh and the striker indicator does behave exactly like a Gadget in my experience. I tested it extensively with an unloaded gun and could not make the trigger break.
My review: http://everydayloadout.com/walther-pps-review.html