my focus is a 58 with a 570mm TT and a 110mm stem, but it's much more aggressively setup than anything I normally ride.

my polo bike is 58cm with a 57cm top tube and 100mm stem
my all city is a 55 with a 565 top tube and 100mm stem, but I have hoods on it now so I stretch slightly more than my previous setup, which was risers, and probably too cramped
both my 722s were 58 /57 TT with a 100mm stem

570-575mm top tube seems like a sweet spot for me. the thing is though, he didn't worry about my reach, he worried about the '55' part of it, which makes no sense at 6' to me, normally due to my long legs I have my seatpost higher than others my height. I hope he isn't concerned with standover

Obviously it wouldn't be bad, my all city is a tad smaller than I'd normally prefer but I prefer to make a bike grow instead of make one shrink