Today I decided to take the ICNG for the first time instead of ICMm, as a treat. The seats are quite comfortable (surprising to me, after the SNG's way less comfy seats) and the ride is also quite smooth (as long as the track is okay). Lack of garbage bins near the seats is a small negative though, and the lighting-indicated zones are still a mystery to me (what does a red zone mean?). Also, it does feel very fast!