I decided to give the Harmony 700 a try. Ordered from Amazon last night, it got here around noon today. Plugged it up to charge. Came back 2 hrs later to check on it, but there was a message on screen saying "Batteries could not be charged." Re-seated them and tried again. ~3 hours later it was charged (whew!). Btw, mine did not come with the esteemed Sanyo Eneloop's I've seen in reviews, but 2000mAh GS YUASA "Eni Time" which also tout very low self-discharge rates.
I then made a new account after downloading the software (no CD was included, not that I'd use it anyways), and about 5 minutes later, plus the time to sync the remote (~2 min), it was setup and working beautifully! I was worried it was going to be a pain or something after all the reading I did... but wow it was very simple.
Having been accustomed to the URC software for so many years, the Harmony turned out to be easy. I was afraid it wouldn't be customizable enough to my liking, but I was able to get it to do everything I needed rather quickly. Even adding extra power-down options and a couple of macros were no problem. One odd default setting-- it had a 26 or 28 second startup time for my TV. Rather excessive... I use only 13 seconds on the old remote, so I lowered that setting a lot!
Oh and I'm sure my wife will love the Help button, which seemed to work great.
I was worried the IR emitter may not be as powerful as the MX-700, but it worked just as well: success while pointed in almost any direction.
The auto-backlighting is very handy. I wish the sensitivity could be adjusted, it's not as sensitive as I thought it would be. But maybe this is a good thing?
I set it to 15-seconds, which seems to be good. Also, the backlighting behind the number pad area is uneven-- some numbers are brighter, some dimmer, but this doesn't bother me since I don't use the number pad.
One other minor thing-- I wish the LCD screen had a bit better viewing angle. But overall, I'm very impressed! Feels solid and has good size & weight... much smaller and lighter than the MX-700, which is actually kinda nice for a change. Now I'm thinking of getting a 600 or 650 for a different room.