Yes. Yes. Yes. Chris King headsets and really all of their components are top notch. They will outlive you. They make replacement parts for even the components they manufactured decades ago and everything new has a great warrany though I would be surprised if you ever used it. Also, a threaded King can be converted to a threadless down the road if your bike asks for one. All you need is a conversion kit (cheaper than a new headset). As for the other choices they are ok but if you are going to spend the buck, get a King. Threaded stems are fewer and fewer these days but profile still puts out about any length/angle combination you could want.