I have a Harmony 550 that's on its last legs, but I'm a converted Harmony user. I plan to make my next purchase a Harmony as well. The only thing I didn't really like about the 550 was the ergonomics. In particular:
- The overall shape was not well designed for one-hand operation.
- The curve of the vol and channel buttons was awkward and made them difficult to find.
- The page up/page down buttons were next to each other (instead of stacked) and I found it difficult to get the right direction. I use this with the DVR guide functionality quite frequently.
- The bottom row of buttons (sound, pic, A, and B) were not very useful.
- The buttons were relatively small.
I've studied Logitech's offerings and there are two remotes that seem to really improve on the ergonomics situation: the 700 and the One.
The 770's pros and cons as I see them:
- PRO: Ergonomics, seems to resolve all of the issues I have with the 550..
- PRO: Four "color" keys. I recently switched to FiOS and these keys are useful for the interactive features.
- PRO: Cost.
- CON: Much smaller user base.
- CON: Six devices - I don't have more than that, but it could be a con in the future.
- CON: Fixed activity keys (not really a con, but not something I find useful).
- CON: Plug-in recharger rather than cradle recharger.
The One's pros and cons:
- PRO: Ergonomics, seems to resolve all of the issues I have with the 550.
- PRO: Touchscreen.
- PRO: Cradle recharger.
- PRO: Very positive reviews - wide user base.
- CON: Lack of "color" keys.
- CON: Cost.
I think my decision is coming down to the design of the recharger (cradle vs. cord) and the importance of the four "color" keys.
Any comments either way?