I haven't really tried a whole lot of bikes other than MTBs...
Also don't have any experience on the influence of different specs.
I tried a friends Canyon Grail 1 in size XL, but that looks odd in every geometry comparison, due to the frame-integrated bars.
Also tried a rose backroad in L, that felt a little small, but I have no idea, how much another stem/cockpit can change.
Guess I have to try that, but i think, that could work out.
I find it a bit odd, that the are almost no reviews of the tantan wheels.
Would you think they are worth a shot, or should I stick to a known brand?