I use those bars on my fixed ^^
They dont get great reviews on the net, but they are the nicest bars I have ever used. The reach is relativelly short, but they have a good amount of drop, and the drop area is all curved and has a considerable flat section to get a hold of, ergo bars are horrible when right on the ends of the drops, these are lovely.
The palm area is also quite comfy to rest your hands on, not great for grabbing hold of, but generally on the tops, you are just resting there.
Mine are 42cm. But the width that suits you would be dependent on your shoulder width and preference. You may need to get the tape measure out or go toa bike shop and hold some bars against your shoulders for width sizing.
Also be aware that these bars are oversize, i.e. 31.8mm clamping area, so make sure your stem is compatible.