I had a lot of people excited about having a space where we could deliberately meet for collaboration. Even more so about bringing everyone into a shared space for a week. However, the collaboration spaces never worked out in practice because you were always missing someone and now had to call in to a Zoom meeting regardless. This lead to the thing quickly dying because there so little was real value from coming in. That might be a company culture thing one could correct though.

It's also potentially a team size issue. If you have small teams of 2-3 people, you can more easily have enough meet for useful collaboration.

I don't know, the hotel+collab spaces is pretty good (from my perspective) when you come into the office once or twice a month and have a group of people you want to meet with and an agenda you want to accomplish.

For more mundane day-to-day work I don't care for it, but I think it can be a handy supplement to mostly remote work.

People hate reporting to work every day where you need to fight for a chair. If you're WFH, you can gather adhoc, do your thing with the team and get out.