I normally hang out on the 50+ forum because well... I'm over 50. I normally ride a road bike but got interested in riding a single speed/fixed gear just because.

After lurking here for a bit, I decided on a kilo tt (note to other newbies, there was plenty of info and good advice available without having to write the much hated "what bike would you recommend..." post).

Dealing with Bikesdirect was fairly straightforward and the bike arrived in good condition.

I've only done minimal wrenching on my other bikes, but there was nothing too difficult in putting together the kilo. The most difficult part was cutting the brake cables the right length, and even that was no problem.

I did swap out the seat for another one I had, and also changed out the pedals, and installed an 18t single speed but everything else is still stock.

I've enjoyed switching back and forth between the ss and the fg to get used to fg riding. I find myself using the fg more and more(although I do have a piece of duct tape on my handle bar with the words "keep pedaling" written on them. When I was learning how to ride with clipless pedals I wrote "clip out!" to remember to clip out at stops). As far as quality, I think it is a great bike for the price, and the frame alone was worth the money paid. Other components are clearly much cheaper, but still work very well for starting out, and the bike rides well.

In sum
this forum has lots of good advice if you bother to look
The kilo tt is not rocket science to put together
the frame alone is worth the price
you will want to upgrade everything else sooner or later but start out with what comes with the bike
don't be afraid to try fixed gear, even if you are over 50