AFAIK, there are only a handful of cameras with a revolving back, and even fewer (if any) in the price range of the Cambo. Taking it off is not a big deal. Takes all of about five seconds. Just be careful not to drop it, and make sure its securely locked back into place before you take your hands off of it (especially easy to bollocks up when you're wearing gloves, at least with the design of my Linhof). I dropped mine only once, but I was lucky since the camera was only about 18" off the ground and it fell into fresh snow.
I'd say go for it. Its dirt cheap, and even if you decide you don't like the Cambo or you want a field camera instead, you've already got your tripod and lens.