Just got my v3. Very nice touch of Castle to ship out what appears to be brand new retail boxed units with the cables and such and not just a repaired unit.
I have two of them, ran them both last Sunday with out a problem. A friend of mine has a few of them also, the only problem he experienced so far is the fan not working. We both where on a track all day. HOWEVER, we have experienced this before (both of us). I guess only time will tell. Hopefully CC got all the bugs out.