The fit was spot on for my foot. The consensus is indeed to size down for TB, but of course that 'size down' is relative to other sizes you take in other shoes, which again are on different lasts, sized differently depending on brand, and so on...!
For example - I've owned 9.5-11 in Alden Trubalance (currently own the 11s); all have fit my foot more or less, with changes in socks.
I wear a 10.5 in Viberg if that helps, but also own a 10 and 11 in Viberg; again, both fit.
And yet, in notoriously small, narrow lasts like Brass Clinch Tokyo's 'Closed Narrow' (CN) last, where everyone says to size up 2(!), I actually fit into an 11 fine, where I was told I'd need at least a 12 (fits fine too with insert), probably a 13 (nah, would be way too big).
tldr; take all size advice with a grain of salt.