I can't agree with excellent build quality. It's nice, but it's still far away from the mbp. The case flexes a bit more, the hinge isn't as smooth as the mbp, and if you use it directly on your lap in a weird position (like on a couch), then it's possible flex can make the case rub against the internal fan and make a bit of a noise.

Also, the trackpad isn't as nice.

Razor blade is a nice laptop, but unfortunately it's still a big step behind mbp in build quality.