Reverb is a big improvment from T4 too T5.It is more natural and much higher quality then before.Which makes the whole thing sound much more natural.It also depends where do people play too.All that reverb on drums doesn't seem too much when you play home ,but once you go out live on a big system it sounds terible.Like from the well.
I will never understand this and it goes with all manufactures.
You probably have to get used too more natural sound of the keyboard.Reverb and delay should compliment the sound, not be the sound.