Studded Snows - Worth It?

Looking for some winter tires for my wife's current gen Rav4 and trying to decide between studs and studless. We're probably going to get another set of wheels & TPMS sensors too just to avoid remounting/balancing every year. I understand that studs are legal in Vermont, but I've never had them and don't know much about them. Our driveway gets icy occasionally, so I suspect they'd be helpful there, but are there downsides? Are they worth it? Is it safe to drive with them at highway speeds? Are they much noisier? Any gotchas to think about? I'm posting here first because I'm specifically looking for input from Vermonters who know our winters and roads. TIA...

RR