That is NOT a "great" tstat. Search here and see how many have failed, plus they are analog. We are in the digital age, they are best. I would rather a Hydrofarm before that one. I have had both and both failed. I was only using them for quarantine so the use was minimal yet they failed. Plenty of people here still use the Hydrofarm but I no longer feel comfortable recommending it. Mine failed in the months.
A tstat is the most important thing you are going to buy. Do not get cheap. Herpstat is what I use. I have a 1, 2, and 4. I have never had an issue with them. The intro is only $100 so I would get that and a $8 tub until you can get a nice pvc cage.
http://www.spyderrobotics.com/home/products.html