Personally I dislike the brown switch; I think they're half-assed compared to blues or reds.
Compared to blues, the tactile bump is too subtle to be noticed when typing normally. Heck, the tactility point does not even match up with the activation point; you still have a little distance go after the peak force before actually hitting the activation point. What's even weirder is that the reset point of the browns comes BEFORE the tactility point.
Blue switches are much more precise -- the tactile bump guarentees activation, and the rest point is AFTER the upward bump.
Compared to linear switches, the bump of the browns simply gets in the way of repeated keystrokes. On the blues, you could actually feel the reset point (and it actually passes the upward bump faster than browns because of the loose slider), while on linear switches the muscle memory is quite easy to develop. But for browns, since the reset point is somewhere like halfway through the bump, it is quite difficult not to pass thorugh it all the way. Thus you need very, very precise control in order to double-tap as fast as linear or even blues.
Buckling springs are the best.