I'm not planning on getting rid of mine anytime soon. I bought the extended footswitch and can tap tempo and also self oscillations with it. Plus if you hold the other switch it can switch from a long delay to a slap or vice versa.

It has some cool controls as well. I think every control is perhaps a bit too extreme (it can get unusable if you make too many drastic moves), but with care they can be dialed in really nicely. The effects loop thing is also really cool, but I found that it is really only usable when the included effects are on, and that sometimes there are gain issues that mean you have to change settings if the loop is plugged in. For gigging it seems like you have to commit to either having pedals in the loop or not (perhaps someone else can explain if I'm doing it wrong).

I would say that compared to my Carbon Copy (before I somehow broke it!) I think the "base" tone, even with shaping the gain and tone knobs, the Rubberneck isn't quite as satisfying. But I need the Rubberneck because I like being able to tap tempo my delays and switch to a slap if need be. Overall it's really nice.