Those zero edges are awesome. If you get the BC, make sure to check for leaks. Mine seems to periodically leak in strange places.
Hope you get it.
My Mom is similar, not real big on the aquariums or betta bowls. (we own house together) So I feel your pain in dealing with that issue. However, I have 2 2g betta bowls, 1 39g FW tank, 1 FW baby biorb, 2 90g ponds, 1 32 g pond (ponds are outside. During the warm weather I have several other large flower pot ponds), and my SW 14g biocube. I have gotten a 29g BC, but so not have it here yet ( trying to figure out where I am going to put it). Then at work I have 2 3g SW picos, and numerous FW setups.