I have an 869. I find that it's not as well built (fluke 87-5 has amazingly tight tolerances), the rubber case thing doesn't quite mate up with the meter as tightly, but it's a minor quibble. It's amazing for the cost though, way more bang for the buck than the 87-5.
I think I've warmed up to it, the rotary switch is incredibly sturdy, not as smooth as the 87-5's as it requires more force to turn and is a bit tricky on a slippery surface one-handed.
also, it's logging to csv is quite handy, though you'll still be limited by battery life for duration, but that's a pretty decent amount of time.