There's nothing wrong with it aside from the 2 top tubes which make it look vintage; bikes in the early 19XX'S? had them (they were all singlespeed too) and typical bike makers stopped making them and didn't again..... I remember I saw bikes with 2 top tubes in some old movies....

I personally like the idea of 2 top tubes but I don't like it at all that the OS was based on the base kilo tt..... it should've been based on the kilo tt deluxe.