I was looking for excellent AP and EP Sounds, adequate strings, brass, reed inst., etc and most of all simplicity to set up and execute. I love my Kawai MP7, but was looking to cut weight, so I did compromise going to a 73 keyboard. Will take some adjustment but I think it will work out. So far, I couldn't be happier as I believe it will meet my needs.
Drawbacks are still some weight although less than the MP7 and the ability to adjust sounds. Most of the time I can find what I need on the board. I owned an SV1 years ago and did like the pianos in that board. These are even better in my opinion. I am interested if any of you are planning to purchase as well.