I found it funny that even in the video with the "sound isolation" the noise is simply too much for a person to stand there let alone even work in those conditions, and that's one miner! I can hear mines through the wall of the room in which they are hosted and I wouldn't stay there for more than 10 minutes but deal with that noise constantly! 70+ is above vacuum cleaners, work with that 8 hours a day!!!
I see zero reasons to buy a miner unless it's profit, go through all that trouble, pay the bills, spend a long time maintaining it and let's not forget the possible breakdown just to get "clean" coins. You're far better of buying a sixpack of beer, getting a homeless guy to do the KYC for you at a Batm at gas station, and get those bitcoins, even with the 5-7% fee ATMs charge.
Basically all the EU, but there is a thing between laws banning it and laws applying.
Nobody is going to bother you for one miner, even though a 2500kwh monthly bill is clearly above any average house consumption but nobody will seriously inquire this. And yeah, by definition what you're doing there is running a business and normally you should have a different contract for your business for everything, from power to garbage disposal to consent from all the neighbors if you run it in a block of flats.