Cue 1000000 posts from people saying they are crap who have never had them.
Have run a set (of ns2s) down to the bottom, with a little stretch. I would have them again.
Excellent tough (reinforced) sidewalls. They're not very forgiving on bumps. Solid dry performance, good dry stopping. Wet stopping is fine, but hard wet cornering and they reach their limit of grip quite quickly. You don't feel like you're on an ice rink, but they don't kill kittens. Drive like its wet, and you're fine - you don't have to take 'extra' special care over what you normally would for wet driving. For normal driving, emergency stops and emergency maneuvres, you'll be fine. If you consider yourself a 'fast road' driver, you want something more grippy.
Wear rate is great on them, not so slow that you feel like they aren't giving you any grip, but not so fast that you'll be holding your wallet to ransom.
Have had falkens egg on me, so would not recommend, but hear good things about kumho these days.
For clarity, have run p-zero rosso's and conti sport contacts on the same car, and use these as the benchmark. They are not equal in performance, but they also are not equal in price.