Excellent UHP tyres, loads of dry grip and due to the stiff side-walls, turn-in feel is quite sharp.
I've hardly dríven them in the rain, and never gone through any kind of decent puddles, but they didn't feel slippy at all in the wet. They have deep and wide grooves.
Noise is a neglible factor for me as I almost always drive topless, and the exhaust/intake simply drowns out everything, so I can't really say if they are noisy or not. They don't sound like heavy-duty 4WD tyres... does that help?
On a half overcast, dry, 29deg track day, they held up well. I set them up to be 30psi hot which I think is too low as they were pushing wider than what I would have liked on long, fast sweepers. Lots of "marbling" (or whatever it's called when tread sloughs off and congeals) at this pressure.
32psi hot would probably be better.
Steering feedback is excellent. Quiet squealing when they reach grip limit, and easily corrects itself when the rear steps out a bit.
Takes a couple hard corners to warm them up.
The only real negative is upon very hard braking in a straight line. I had a couple of moments of locking up the fronts which were very unexpected, although this is in comparison with the grip provided by Advan Neova AD08R, so the NS-2R just needed a bit of getting used to insofar as not stomping on the pedal too hard, too abruptly.
Am keen on using them again next track day with higher hot pressures.
In summary, awesome tyres for the price and I'm very happy with them. You're unlikely to achieve PB times at the track if you've used Direzza Star Specs, Advan AD's..., etc. , but road performance is comparable to these more expensive/established peers.
If you suffer from "brand snobbery", these will cure you
