I like it a lot :) Enough to buy a second one from JDS.. The one I bought from a DIY'er kept having issues with the pot. (it's not a question of a poor quality pot either.. It's supposed to be a nice one). Anyways, the pot went bad twice.. So, I just decided to get one from JDSLabs.. so I can complain at them and have them fix it if it happens again :P
I honestly think something was just wrong with that O2. I haven't seen anyone else have the same problem I had with it. I sold it for 45 dollars, accordingly.