I just used this because I had it and it no longer worked, i saw good insulation and a tight door seal and the light bulb went off.
You can use anything that can hold heat and humidity, I very rarely mist them.
I first washed all clippings in a Bleach/water mix then let dry, I then slashed the clippings about inches in the bottom half with a razor in a few spots, then I dipped the clippings in Clonex , then I put the clippings in Coco coir and Perlite, about a 70/30 mix in clear cups, no holes.
As far as watering, last year I probably killed many by over watering, I just leave them alone now, even when they look a little dry on top, I leave them.
wish you the best of luck, I am positive you will have success