I have one low tank that belongs to my 12 year old dragon. Im not worried about her getting out and with no lid its easy to adjust temps. I think it would be hard to control temps in a low viv. I could be wrong, and i to like the doors infront of the viv. It makes it easy to clean and remove the beardie. Maybe someone else will respond who has had experience with this tank. I had the taller one and it was such a pain to get things right i ended up giving it away.