they are comparable to boaphile slyplastics and neodesha ( the only ones I have actually had in my hands) the vision is a great enclosures I like it quite a lot to be fair they are very similar to the others I have seen and don't stand head over heels above the others they are all good all had things I like and dislike about them the vision sags more than the others have but is easier (more efficient) to heat through the bottom. I have no direct complains past the sagging and to get the efficiency that is the price to be paid.