Got mine just before christmas. Have about a half dozen dives on it (I dive a bit less in Jan in New England). Still trying to decide which display mode I like best, but I'm leaning toward full. I have had a few brief drops on the heart rate monitor, but as was mentioned earlier the contacts are supposed to be wet and I have a bit of trouble working up a sweat in 39 deg F water. In short, I'm lovin' it!