Yeah, mine is a Galco Miami as well, I've had it since the 1980's. For me, it is by far the most comfortable method of carry all day long without it interfering with actual doing work. Kinda handy that the down-loops act like suspenders. Plus side... everything is out of the way and you don't feel lop-sided with the mag holder balancing the weight of the pistol. Down-side, you gotta wear a jacket if you don't want to advertise and scare the neighbors.

You do give up speed of access, and you absolutely telegraph what you are doing when you draw.
My comment about training bias is about how people new to carry are siloed into thinking only about apendix, hip (IWB or OWB), thigh, and ankle holsters.... because that is all they are going to see used on any range that actually allows people to practice. Other modes, like across the cross-draw across the chest or shoulder holster under the armpit are sortta ignored unless you watch old movies. (Like the old military issue aviator's holster... cross draw with nothing to interfere with the seat harness straps... practical and comfy, but otherwise forgotten...though I see it making a come-back on the front panels of plate carriers.)