well ive had mine for a couple months now and yes i have that enclosure set up properly. my friend had bought his snake around the same time as me and we both bought the same starter kit so its basically the same set up he just doesnt have a humidity gauge in there which i will get as soon as i can make it to the pet store (most likely tomorrow) but other than that the setup is exactly as mine.
as for mine that i have had the humidity is around 65% cool side typically @ 82 degrees warm side hovering around 90-91 degrees