I think it's great to have the rollback feature because otherwise I would've been stuck with a buggy JP. Now if I'd been on subscription paying a measly $14.95 per month - $21.05 AU - and then having to wait for 2 week for Tech Support to get back to me and then having to spend hours going through problem-solving and then having to spend another $21 the next month to get 'possible' fixes, I'm going to pretty ticked off especially with no guarantees an additional amount of money will fix the issues.
Whilst I appreciate new features and optimisations each month, if I have a working DAW and then such an update turns it into issues and a waste of money - as measly as $21 bucks is, which all adds up mind you when your not earning a lot - then I guess I'm not going to be singing Sonar praises for a while...but of course it's easy to whinge when you have a great DAW and then an update makes it unusable...get spoiled I suppose.
Irrrespective, I'm currently on Ipswich which is working fine but I kinda resent I'm unable to access my 'entitled' new features having already paid for them. Maybe there should be a refund process for those monthly updates that introduce issues? Updates that don't work for that month for the user, maybe the next update free? Or maybe next full price renewal, less the updates that didn't work. ;