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Bought some Mirka Abranet sanding discs too, and the dust extraction is so good now it produces virtually no dust at all. The light around the sanding head also highlights every imperfection on the wall amazingly well.
It's a bit on the heavy side - almost 7 kg - but I can deal with that. Luckily I only need it occasionally.
Robota S22 is the exact model, in case anyone's interested. Paid 170€ for it. There were cheaper and lighter ones, but those didn't have lights.
Drywall mudding, taping and sanding it the worst.
That's probably why so many is willing to pay for me to do it.
It's labor intensive.
Watching an old pro is awesome - they know exactly how much mud to use and can skim it down so neatly.
I actually like mudding/taping. Sanding is hell though, I'll agree on that.