I think is generally accepted that the last good bug-free (or almost) version was 3.11 or so… Anyway, 3.
Now is 6. There must be some improvements…. But all of these at the cost of new bugs…. Not good.
Cubase still is a very nice DAW, when it works! 😉
EDIT: I really like the new Padshop synth…….. I mean, what I hear.