If you setup a tank properly, you won't have issues with heat or humidity. For the most part your ambient temperature will be in the 70's, unless you keep your house cold, then with a nice ceramic heat emitter on one side and a UTH on the opposite side you can regulate the temps easy. Humidity, what I did is I used the cypress mulch, I put a thick layer down, then I used a small pcv tube put it in the corner, and made sure it went straight to the bottom. Then I evened out the substrate with the top of the pipe, and once a week I would pour a few glasses of water down that tube which soaked the bottom half of the substrate while the top would remain dry, and the UTH raised the humidity and the heat emitter wouldn't zap it like a light. Then you mist the top of the substrate to your liking but the humidity stays high. Keep this in mind I did this for my Anaconda and never once had any issues with sheds or humidity. You can also put saran rap on the opposite side of the light to keep humidity in there.
The only reason I wouldn't get one of those cages is because I can't use any kind of a overhead heating source, which in my tanks I liked to use the dark blue bulb which gives off a faint glow like the moon so it gives the light a little enclosure. Though I did see that some of those tanks come with a place to use overhead lighting.