I finally used al Maha service in March, in one direction (I booked too late and they said they were oversubscribed for my outbound). I had planned to do this back in 2020, but that trip was COVI-cancelled.

I felt absolutely ridiculous. A person walked with me, as we went exactly to the places where I would have gone on my own.

I suppose if someone has mobility issues, or hearing/sight issues like the person mentioned earlier in the thread, it might be worthwhile. And perhaps if you are afraid of oversleeping in the lounge, it might be good. But I do not plan to use it again. It wasn't bad, it just failed to be good.