It's flimsier than a track frame should be. Track frames are supposed to be stiff for optimum acceleration while sprinting. When I sprint on my Windsor I can feel some of my power transfer being absorbed by the flex in the frame and I can see the bottom bracket swaying from side to side underneath me.

Also, the saddle sucks, I thought the stock drops were too wide, and I've never even heard of the headest manufacturer (Chinhaur), which uses half cartride/cup-and-cone bearings on The Hour's headset.

But again, I'm being fairly critical of this bike. If you're just getting into fixed riding and aren't looking for a great setup it's a good deal for a fully-built.