I just tried this with a queen size.
Verdict : very convenient, holds up really well. I FMQ-ed the quilt on my domestic machine, nothing fell out. So it is very sturdy.
But, I would leave the outer 10 inches or so glue free, and use safety pins. Because as I FMQ from center outwards, I realised by the time I am at the outer edges, I need to readjustment the basting. Glue does not allow for that.