Much like my position on Brexit, I don't see any argument for Scotland to be significantly better off or worse off as an independent nation, with much of the balance being down to random events. Also like Brexit though, there would be massive disruption, argument and costs in the process of transition, but multiplied many times given the much greater scale and scope.
I don't see the EU being all that bothered either way about an independent Scotland joining, and some EU nations may well object to it for their own reasons. I certainly don't see them gaining any of the special benefits the UK had, they'd just be treated as another new and relatively small applicant. It would also create an entirely new land border between the EU and the (r)UK, potentially leading to a whole load of new issues there.
Also, the process of joining the EU, even if it was accelerated, would take many years and Scotland would likely need to be independent for many years before even starting the process to be able to establish and demonstrate the economic and political stability that is required. Again, not significantly better or worse off in the end but facing long transition years either way.
Where are you getting that from. The idea had been in the offing for decades before and was a Labour manifesto pledge in the previous election. I'm not sure Labour would have pushed for devolution if there wasn't significant call for it, but I'm aware of zero evidence of it being forced on anyone.
The only clear benefit of Scottish independence I can see is that I'd be able to apply for dual nationality, but I'm not nearly arrogant enough to consider that worth the costs and risks.