I have the Krell 7.1, and feel it is a great product. The sound quality is much better than the original HTS. Operationally it is easy & reliable. If I devoted 70% to HT and only 30% to music, I would look for something less expensive than the Krell & Theta....While both these pieces do exceptionally well with HT, I think you can get 90% of their performance at a much lower cost. Personally, I didn't sacrifice the music part of the equation.
I also like EAD. It was my first processor, but it is very user unfriendly. I think it has gotten better, but if other people in the household are going to use it expect some resistance. With the EAD, I recommend the HTM 700 remote for easy operation.