To each his own.
I had a peer in my industry tell me how great the "three days a week" model works for her organization. Everyone is in the office Tuesday through Thursday, and works from home on Mondays and Friday.
She works for a government agency, so she's obviously completely in the dark about the biggest flaw in that arrangement. Bringing people into the office 3/5ths of the time only makes sense financially if you can reduce your office footprint by 40% and schedule your staff to work in shared arrangements. If everyone is coming to the office on the same three days, then the employer has to keep 100% of its office space even though it isn't being used 40% of the time during weekday business hours.