On One Pompino owners...

Would S or M size pompino fit me better? I'm 168cm tall (about 5.5 feet)
The M-size got a little bit bigger headttube and seat tube and it's a good thing, but I'm just little bit worried about the top tube lenght 541mm and that's sounds a bit too much for me. I usually have ridden frames with 520-530mm top tubes and the S-size got 525mm.

Height is easier to fix than length, although how much of a problem a 16mm longer top tube is depends on what bars and stem you plan to use.