No mv measurements, but I really like the MW102. It's really a portable, but I lay it on the bench ;-) It's ATC with two separate probes.
I keep a jug of distilled water with my carboys so I can leave the temp probe in the distilled water (it's the same temp as the wine) for most measurements.
I frequently use the temp probe by itself, so it's dual purpose.
No probe holder like a bench model, but the probe can be inserted into the top of carboys for a rapid round of rinse, measure, rinse measure ... w/o drawing samples to a separate container. This is where being portable pays off.
I would like to have a probe holder for titrations, but I don't want one bad enough to pay $60 (the cheapest I've seen) for one.