Too many hills. And what's up with the obsolete streetcars? I don't think I'd like it at all.
Seriously, gorgeous photos. I've made several trips there, and it's an amazing place both for the visuals and the climate.
If you pick your route, time the stoplights, and apply the "Idaho Stop" rule to some stop signs, you can coast all the way from the top of Twin Peaks to the Ferry Terminal on a bike without pedaling and without stopping. Going the other way probably wouldn't be as much fun.