First of all, that's a really sharp looking bike!

Gear ratios:

The problem I have with traditional 10-speeds is the redundant gearing. You really effectvely only have six different gear ratios to choose from. So it's really a 6-speed, IMO.

My 10-speed has gear ratios from 1:1.5 to 1:4. I could get that same range from a Nexus 8 speed hub and a single chainring, and have 8 distinct gear ratios.

Or, I could get an even wider spread with an 11-34 9-speed cassette & a single 50T chainring: 1:1.47 to 1:4.54.

I'm beginning to question the need for a FD at all.