I have several vision cages, one of which houses my burmese. It is the 42"x60"x18" one. The positive side is the sliding doors. I have heard of problems with smarter snakes taking advantage of the time it takes to swing a hinged door. The down side is the amount that the roof and floor will sag and warp. It seems to be a big problem in the larger visions. It really isn't an issue for the animal, but it isn't pretty if you want it as a show piece. I have seen people make metal frames for them to help prevent it, but at the price you pay for it you shouldn't have to! I got mine on craigslist for a great price, but I certainly wouldn't buy a new one! But just so you know, I'm not bashing the entire vision line. I absolutely love and swear by the smaller vision cages!

As for the other brand, I have no idea!