Which is the last version of PM that works w/o major showstopper issues?

Just go through the topics that have been created/updated since this question of mine, and you will have exhaustive information on the things that do not work: just about everything. In particular, I faced guest OSs that flat out refuse to boot. Should not have anything to do with my HW.
 
... exhaustive information on the things that do not work: just about everything.

That's strange. In my cluster at my job and in my homelab everything works fine. Of course my home-lab can not do everything what my professional cluster does. The parameters, the tasks and the solutions and my expectations are different.

Could it be that different use cases, expectations and different approaches result in different experiences?

You may give us some detailed description regarding a specific problem to get a chance for help. And yes, not everything will work...
 
Just go through the topics that have been created/updated since this question of mine, and you will have exhaustive information on the things that do not work: just about everything. In particular, I faced guest OSs that flat out refuse to boot. Should not have anything to do with my HW.
I read the posts (also answered and still waiting on follow-up from you). You problems range from not reading the documentation up to finding a real bug. So, you covered a lot in that short time span.



Yes, you said it already:
Thanks for the thought. Having seen all of this, I went vsphere way.
What can we do besides saying Goodbye!