W/we have been eyeballing the 2.OH, because of the convenient batteries and charging. (AAA and USB as I remember, you can manage both easily even in a grid down situation with the right chargers.)
But so far We-vibe 3 is what W/we have, and W/we are very satisfied with it. Versatile, powerful enough for my Baby, rechargeable, and I can control it with the remote. Small enough to wear anywhere, and very comfortable as my Baby says.