I was leery about purchasing this after reading other reviews on other sites that give a bleak outlook on this unit. However, I decided to take the plunge, and I'm happy I did. I'm quite pleased with this unit's performance and feature set, and feel that it's a great buy for the money. It's quite accurate when calibrated and features a wealth of atmospheric data that any outdoorsman will find quite useful. I haven't dropped my unit in the water yet as the previous reviewer did, but I have found that it holds up just fine in the snow and rain, and is particulary well suited to climbing and skiing with its run tracking and vertical ascent and descent capabilities. The unit does have a couple of deficiencies. The buttons are small and hard to use with gloved hands, the quick release clip does not hold securely, and the user interface is not very intuitive and easy to use, but it can be mastered with practice. In summary, this unit has a few quirks but provides excellent capability and value for the money.