I've found Breezeway a hit and miss but is usually better on smaller equipment. The line on the red-eye (767-3) SFO-ATL the other night was absolutely horrid ... "gate lice" - I love that term! When F/Zone 1 was called there was a mad dash of about 5 gabillion pax to the Breezeway line to the point the GA actually restated, "First Class Passengers! Where are you? Everyone else, stand aside!", due to them being blocked. I was a paying F pax (not upgrade) and had to basically muddle through.
I even overheard one (proudly displaying their SM tag) stating "folks need to get with it here" to which I stated, "yes, they do. Everyone is blocking the boarding path. Now please step out of the center of the aisle that you are blocking with you suiter so I may board"
It was a total cluster ... well ... you know. And ps: I hate those stupid suiters that people try to carry aboard and cram in the overhead taking up an entire bin and then having to pry out like a dead carcass after landing.
Sorry ... stepping off my soapbox now.