Humans in that cross-style garden? *whistles* I've seen only ONE build in there and it was horrific. I'd like to see some shots to learn from that one!
I've seen it only a pair of times, tbh, but worked well, and the bases weren't extremely well built (reactor was more protected than armory and defcomp, as if reactor was any weak). I'd say it can work great with a more sensitive building.
BTW, How about arachnid?
In the servers I play there is the habit of doing upstairs and building reactor behind boxes. Some guys like moving to the upper pipes (I hate every base where I can't get back for healing with my battery pack), and under stairs is generally considered a very bad move.
I myself, changed my mind recently about under stairs. Some days ago a under stairs desperate move produced a so much awful base that I decided to tweak it a bit. It resulted in the reactor on front, just behind a column. Armory behind reactor, and behind both of them defcomp + tesla + turret (protecting the hole). This is everything at one side, with medi at front of armory, ofc. Surrounding reactor (everything inside the understairs space) typical tesla + turrets combo. And, at the other side of the under-stairs-place 2 nodes.
It standed very well, even on SD. I won't try to say it's unbreakable, but stands much better than the upper stairs base uses to do for sure.