Reptariums do have their uses and some of us use them for long term housing. The issues you may run into include...
Cranky zippers: zipping and unzipping multiple times a day will eventually wear them out or create fabric snags and missing teeth. Treat them gently.
Feeders chewing holes in the mesh: some people find that loose feeders (crix and Zophobas) chew holes in the mesh. Now your cham isn't going to escape through such holes, but they can be a hassle.
Heavy mesh may filter out some UV: Some claim that the Reptarium's heavier mesh filters out beneficial UV and the visibility isn't too great. I don't know about this really.
Basking bulbs might discolor the mesh on top: I wouldn't put high watt basking lamps too close to the mesh.
Most people find these cages are great for temporary quarters. You could use one for now and eventually decide to build your own cage once you decide what features you'll want. Then use your Reptarium for transport or temporary outside basking.
Not that this is critical for this group, but wildlife rehabbers LOVE Reptariums for bats. The cages are lightweight, very portable, soft on tiny bat toes, and not very expensive.
