I have this exact tank and love it. It seems to be sturdy and well made. I've only had it for a few days though. I love being able to open and access from the front without having to move the lights and remove the top. Its a lot easier to reach in and do things from the front too, rather than reaching down into an aquarium. I like that there's a good amount of solid wall below the opening doors to help keep beardies and crickets from running out while the doors are open. All in all a great design and much more convenient than a standard aquarium.
My one complaint so far is that the lid is a screen, but has plastic dividers that break it into sections 7" in width. This means that I couldn't rest a dome light larger than 7" in diameter on top of the lid because the plastic dividers got in the way. The dividers also limit the ability to place lights exactly where you want. I ended up replacing the lid with a solid one piece metal screen type lid. It fits perfectly and now that can arrange my lights however I like.
If you have any specific questions about the enclosure just let me know.