I have had a lot of interface with Mike Blackwell and the Dallas Darkroom (no, not another Harry Potter Book

). I took a couple of classes there and have used the studio three times. You can have the use of a grey mottled strike but you will need to bring your own white paper background. However, the walls can be used as background since they are slightly off-white; one of them is lightly textured. He has some interesting props like old doors, but only a few chairs. You may want to bring something of your own.
No, he does not disturb you whatsoever. Mike is a very experienced photojournalist and a true professional. BTW, the darkroom is well appointed; for a darkroom (I have expressed my views of darkroom before

).
He has quite a few classes there and is very instructive; he always has a field trip which can be interesting--like the West End at night at Christmas. Some of his classes: Darkroom (beginning and advanced), Basic Photog, Digital Photoog, Still Life, Landscapes, People and a one-day 8-hour Figure Study Workshop.
Just thought I would add my 2 cents worth.