well - I go by my vet's advice, which is that beardies are comfortable when you are too. I have a basking spot, and an infrared light on throughout the day and night, but other than that he has been fine. My room never is generally around 68-72 degrees, and he has his basking spot when he wants it... But in general he is very active, leaves and returns to his cage independently throughout the day (while i'm watching cuz im paranoid), plays jumping around in circles in his cage, loves climbing the walls, and he's pooping nearly every other day (i keep it on a calender, just to be certain). I've had him in a bird cage for about a year, and before this was a big dog cage (both covered in screen to keep bugs out).
Honestly, both of these have worked better than the aquariums. When he was in 2 different size tanks (one on the smaller size, the second the size of a dresser), he was lethargic, ate rarely, and pooped even more rarely. I know the research says they need high temps all the time, my vet says he sees more fried than frozen dragons so not to worry. He used to always wall-walk too, which always made me nervous, but now that he's in the bird cage, he climbs up and down, sideways and upside down on his walls - I think thats why they wall-walk, to try to climb. He still wall walks on the walls of my room haha, and he knows the spots I've hung up chicken wire so he can climb. I think thats the best part of this cage for him, he's active and entertained cuz he has places to climb high, and to squish into and inbetween cramped placed.
In addition, his poop was clean of parasites and illnesses last checkup. I give him baths very frequently (because I like the company) to keep him
hydrated and because he likes it (even though he used to hate it), so maybe that is another reason for his health and stuff. I don't know,but I must say, I love his cage, he really does seem to love his cage (watching him play right now).