well there's always an allure to an itty bitty tank and if you can fix the inherent instability of one by having a huge sump by hiding it and not telling anyone... you've essentially killed 2 birds with one stone.
1) ooh ahh its itty bitty, you have cool stuff in it..
2) less headaches because you can pack carbon, rowaphos, chaeto, autotopoff, extra liverock, etc... in that little hidden untold sump hahaha.
I thought about doing another aquavase like that.. where there's no equipment in it and people go "WTH?" when they look at it...