I couldnt bring myself to do less than 300 gallons

. Any larger of a tank and Id have to remodel so this was it. The 30" depth will be fun to reach though

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Isnt it awesome to have supportive wives who want to see us happy?
I really wanted to go bigger and had support from my awesome wife that puts up with me. But it was either placement or larger size. Couldn't have both. I really wanted the tank near/ in the living area and the 180 is just about as big as I can go and fit nicely into that space. I have a very large finished basement that I could have put just about any size and even build a fishroom. Just didn't want it in the basement. For me it was too far out of the way so I settled for this really nice 180. I'm happy with it.
On your tank, the 30" deep is the only part I would likely have a problem with. Looks REALLY good and I think the fish really like the extra depth but such a PITA for getting to the bottom (especially in the back) without needing to get your armpit/ shoulder in there. The wider the better an long as you have access to both sides. You get too wide without access and it's the same issue with maintenance.
All that said, if I had a room for a larger tank where I wanted it, I would have picked your dimension vs mine now.