If you're talking about cell signal, it's good. I got one a few days ago and the signal strength is just as good as my old phone (Samsung Galaxy S). I've only made a handful of call so far on it but so far haven't dropped a call yet. Call clarity is pretty decent - not quite as clear as my Galaxy was in terms of the earpiece, but the people on the other end say I sound fine.
I've posted a comment about how some apps are kind of buggy on it, though. You might want to read the thread about Youtube video playback being buggy on some units (mine only works in 3G or WiFi but not 4G for playback), and on mine, Skype video only works with the camera being held in landscape (sideways). Overall though with the exception of these bugs, it seems to be a good phone other than the size (thickness) being a bit above average.
The skype being only in landscape is the same problem I had with my thunderbolt on gb. The leaked release allowed it to run in portrait or landscape, but that ran on 2.2. Were you able to get skype in portrait on your gs?
As of this moment, Skype only runs on my Rezound in landscape orientation correctly. The phone has the latest firmware updates to it, and it's the newest version of Skype. The Verizon Tech I talked to on the phone tried it out on a test Rezound they had in his office with the latest updates as well, and he experienced the same issue. So right now, you CAN use Skype on it - but not in portrait orientation (at least on my phone and his). I haven't had the chance to try Oovoo or another service yet, though.
I guess my question is, is this a limitation because of the device, or does skype not support portrait model?