Hi,
I made some quick and dirty test from freeSU -> Vue7 via .dae when 7.1 came out and everything went fine, much better than the (supposed) .skp built-in import in Vue (win32 only - .dae is for Mac too). I used default settings AFAIR but, as I said, they were some extremely simple scenes. Usually problems arise when it's a real job and you're short in time... following Murphy's law
.dae is a slightly variable format from what I heard (I'm no expert), so every app with collada import might have its own issues with it...
cheers,
A