I have used the more "luxurious" minke fleece and the "bumpy/dotty" minke quite a few times.
I do the sandwich in the garage where I can get as much air flow as possible (I was taught to do this or the fumes can explode). I spray baste it first and then pin baste it.
Kids and adults love the fleece backing on a quilt that is going to be used and loved because it feels so soft. The fleece also helps it to stay on and not slide off of you or the bed or whatever.