I'm liking it, in moderation. Just rolling out of bed, turning on my computer and making coffee on company time right away is very time efficient. It's also nice that I can work in peace and ignore coworkers whenever I need to.

The downside is that it's pretty annoying to collaborate on things, especially if it's with more than one person at a time. Gotta schedule a meeting, even if in person it would just be a thing of walking over and talking to them for 5mins.

My ideal mix is 4 days wfh : 1 day in-office. I get all the talking out of the way on that one day (plus it's enough socialization for the whole week) and the rest I just exist in peace.