David,
I had a Hitec Flash 5X but sold it. I liked it okay, but prefer Futaba. I've heard many good things about the Eclipse 7, and having the Spectra Module can never be a bad thing. I still use some of Hitec's receivers, and aside from the "Feather", they're all very good. Never tried the 425 servos but have quite a few HS-81's, and some HS-55's, and they've been very reliable.

Why are you asking about the Eclipse? Do you have a chance to buy a used one at a good price, or are you thinking about upgrading radios already?
Dennis-