I was looking at these devices at first, but finally decided to get a Sous Vide machine. I use it to precisely decarb, and also to infuse oil. The only smells are when grinding the buds, and then a slight odour when I open the bag after decarb.
No minimums, although I tend to run a half ounce to an ounce each time. I could just as easily do an eighth.
One of the best features is easy cleanup. I decarb then use the same bag to infuse the oil. By the time I am finished, I only have a sieve and potato ricer to wash. The bag and filter just go into the trash. EZ-PZ.
And, I can leave it on, drop a steak or 2 in there, and enjoy super tender meat.
Disabilities are expensive. I am on a budget, and compared to the MBM etc, I saved at least a couple hundred bucks.