"Looking to buy something new" Ah, yes, money in search of a purpose/purchase - that can be fun and dangerous!
I got an FNS-9c a couple weeks ago, and have had one range trip so far. I think that it's well worth the money. Compared to the Glock 19/26, it has a M&P-style hinged trigger which is smooth-faced. No bladed safety lever like the Glock, so I think the trigger is more comfortable to my index finger. The reset is also a little different and I think I prefer it to the Glock's - it's short and positive, basically giving your finger a little push (with an audible and tactile click, maybe not quite as pronounced as the Glock), and it's ready to go again. Ergos are nice and work just fine for me. Slide serrations are available front and rear and they're cut pretty sharp. The molded stippling is on par with the Gen 4 Glocks, moderately aggressive and doesn't need enhancement from grip tape. It's a good deal, coming with 3 magazines (a 12, a 12-with-pinky-extension, and a 17-with-sleeve). Styling is subjective, of course, but I think it's nice - with more thought given to aesthetics than with the pugnacious pragmatism of the Glock.
In my opinion, it only lacks aftermarket support and record of durability/reliability to the Glock. (Though FN has been around much longer, the FNS line is still pretty new) I don't think I would hesitate to use it as a carry piece, given the right holster solution.