I carry my PF9 almost everywhere. For warmer months it carries really well in a belly band around the lower waste line. You can pick them up for $20-30. It only works as a pocket carry with really baggy shorts. Otherwise, even with a Desantis Nemesis, you can see the profile of a gun in my front pocket.
Its the same dimensions and capacity as the Ruger LC9, but about 25% lighter and 35% less expensive. I wouldn't be surprised if the Ruger was the more hearty, durable choice, however...so look over both of them.
My PF9 has been 100% reliable for the 300rds or so I've fired through it. No problems with JHPs either. It has a little kick, but emptying a full mag (in short order) into a 1sq ft target @10yds is very attainable with just a little practice...and that's about what I'm looking for in a lighter everyday carry type. The Ruger might well be easier to handle, given a little extra weight.