I'm still running V25, it does all all the things I need it to do.
I've tried V30 but I can't cope with the file bloat and so having to copy all your finished geometry to a new file to get something that isn't slowed down massively by the ridiculously large current file.
It's a right pain in the arse to have to copy multiple layers to new layers in a new project just to ditch the change history that you don't need, there should be a Merge Down or Flatten Layer style function to save all the mucking about, but there isn't.