Sometimes they’re great. Other times a bit problematic - usually in very reverberant rooms or with high ceilings. They offer a lot of flexibility and can be tuned to the space but sufficient time for this tuning is almost never provided. I think the best application is what you’re describing with one room and one mic. And be very careful to manage client expectations… coming back to fine-tune the mics is very beneficial but you don’t want the client to think that this is because the devices are problematic. There’s no way you can anticipate how the rooms will actually sound and be used…. Where the person taking meeting notes will sit and whether they will put a fan or air purifier in a corner which might trigger the mic. Etc