Speed is not enough
A cafe can test fast at noon and still fail a Zoom call at 4pm when the room fills, rain hits, or the router gets crowded. The concierge treats quiet, seating, outlets, air-conditioning, and upload stability as separate checks.
The better request
Ask with the call time, neighborhood, call sensitivity, food requirement, and how much noise you can tolerate. That gives the concierge enough context to choose the place, not just the prettiest listing.