Really wanting to have a play with the Beta's features, but I'm a pussy and will wait for the full release I guess
Its a wise decision. Still it's a Beta-Version.
My next Gig is in 2 weeks. So I have plenty time to test at home and at rehearsal.
My experiences till now. No problems, just some insurance.
If I would have a GIG this evening I would downgrade and load the backup.
But it's only a rehearsal and I go with 4.0 Beta.