Just tried it and loved it!
Just took my Avy I Cert class and got to try out my Ortovox D3. I was amazed at how fast I could find another buried beacon! Took me straight to it. Easy to read. The harness is a bit annoying as you have to have it strapped around you to turn it on, and if you don't want it on, you have to have a strap dangling from your waist. Also, it's hard to get close to the snow unless you adjust the waist strap.