I spent some time reading and the way their articles are written seems to show that they are catering to a completely different crowd than the performance enthusiast. I'm sure Mike appreciates the exposure, but something tells me their readers have very little in common with Mike and what he's all about. The only area where I see some overlap is in drifting. But even there I don't think their readers are on the same page as Mike Kojima with their forays into drifting.
Maybe I'm not used to the "tuner" scene as such, but if their quality of research and writing is any indication I can't say I'm missing much by staying away.