[jsty]

Love the idea of a space specialised to deep work, although if you're offering a space to work I don't think "no screens" should extend to a disconnected laptop.

If you're offering people to disconnect completely for several hours, some form of "we'll hold your phone / offer an emergency contact number" service would be attractive. Like it or not people - especially parents - have gotten used to being contactable at all hours in emergencies, and it would get rid of a major anxiety I think a lot of people feel when going off-grid.

[chouchinhua]

I fully understand the anxiety to stay contactable, as a father of two children myself. I haven't figured out a good solution to balance the needs to stay connected and the needs to stay disconnected, though. One solution is a concierge operator, like what you mentioned. I've heard some luxury villas provide such service. iPhone and Android provides call forwarding function, so the guest could set up a temporary forwarding to the concierge number during stay.