The numbers 6 years ago were enough to make me think I wouldn't want to do it again. But there's that many forum people I haven't seen for ages doing this one, might have to grit my teeth and turn up.
Volume of numbers obviously depends on the weather. Last years was perfect so it seemed like it was a lot busier. When it pissed it down a few years ago however...
Anecdotally I'd say it's busier now, but not loads.
If you want to ride at a quiet time leave before 8 and go quick or after 10 and go slow.