I've done both acrylic and glass at larger scales, I still like glass.
180 will be heavy, but it'll look sharp too.
Over flows can be a source of leaks, I've seen most there, or a side panel pulled out, cracked etc.
One of my clients has an older one they did.
It's looking good.
There are plenty of acrylic makers around here, few glass tank makers.
I've done enough Acrylic stuff personally and for clients, I know the trade offs.
As long as you use the silicone well, the glass is the more important element, good thickness for the distances and pressures used. Rimless tanks need to be over built and not tall/high.
But I wanted a longer tank, and the glass is 3/4" thick starfire.
Which is thicker than any ADA tank.
So I'm using good glass, and good dimensions.
I spoke with them about the rimless stress and distance, they said the 3/4" thick should pose long term issues, and what I've seen with ADA and others, I have to agree.
As far as leaks, etc, I'm fine with silicone
If you fill a rather pricy order for several tanks, all high line glass, I'd hope you do a good honest job. As long as the tank is set correctly, (I use neoprene base, then a 1/2 styrofoam based on top of that) good stand etc, it should not have any issues. The tank will cure a month before I pick it up, so the silicone will be well cured.
I can get tanks from Lee Mar, but decided since I have to pick them up there in southern CA, I may as well use these folks instead and see. Lee Mar and GC's are about the only folks around. From there it goes to larger engineering firms or myself and more public aquarium displays.
And that's a lot of $ for the home here. Maybe later once I get a house in Marin in a couple of years. I'll do that myself (I love huge headaches)
I likely will not have the tanks set up until Feb or so.
I have to make the lighting and install the filters etc.
I'm in no rush.