Yeah, our office was attempting to sign up for Feng Sky today, but we were disappointed that we were dumped into 2.0 Beta trial. I spent about an hour in there and found various glitches where I needed to force refresh my screen to get around them. I've also found multiple pricing structures on the website, depending on how you navigated through.
Upon first glance, it also seems to be missing some of the functionality of workspaces that we really enjoyed. The nested workspaces was a feature we really liked in 1.7.5