I replaced my much-loved iMac 27 last year with a Mac Studio M1 Max version. There are faster ones out now, but I’ve been very satisfied with the speed and connectivity. I’m not a super heavyweight user, but do some recording via Presonus Studio One, and it has been flawless in that function. I added an external SSD, which has also benefitted from the Thunderbolt transfer speeds. If there’s anything I’d do different, it would just be to have added a tad more RAM and SSD for a bit of future-proofing. But I’m plenty satisfied as is, with no hardware issues so far.
I did try the Mac transferring software, which worked fine for all the native stuff, but I kept running in permissions problems with other software. I just wiped it back to factory, and reloaded the apps from scratch and had no further issues. Next time I’ll do that from the start. Otherwise, all sunshine and roses so far!