It was anice set up for 400 but it is just a rough ride, they are fine but you will probably get a better bike by shopping around used stuff and finding something else. By better I mean something you will like more and thus ride more. The AL straight for is just too much... Other than that go for it. But used is not a bad way to go. (keep the front brake for the time being) any time you are cutting corners you risk getting a drive train (specifically hub, cog, chain) that may not be able to handle the rigors of fixed riding (all road parts are not designed for this, most track parts aren't either).
brakes are always a good idea.

The langster looks good with wide slight rise bars and oury blue grips. Rides better too.