I've commented on this on the other WFH thread, but, yes, I'm loving it. Not getting up at the crack of dawn and not commuting are doing wonders for my stress levels and bank balance.
I've been WFH "once or twice a week" most of the time, for the last couple of years, with 3 or 4 offsite trips a month - normally London. - I expect this will become going into the office once, maybe twice a week in future. That is fine with me.
I was getting to the point where I was really hating going into the office, and was on the verge of asking for a sabbatical, just to get away from the place. We hot desk, which I hate. The coffee is bloody awful. I get on well enough with colleagues, but none are "mates". I am a bit of an outsider at work, so I don't miss people at work.
I do miss popping into the Dr Martens shop at lunchtime, buying cheese and beer at the Grumpy Goat, browsing CDs and records at The Sound Machine/Oxfam & seeing non-work mates in the pubs. Maybe my "in the office day" will become one big outing to look forward to!
It helps that I'm largely a standalone technician with a small niche, so no real "team" to work with. 10/15% of my time is spent on another area of work where there is a team, and that might work less well.