I bought into the hype of these switches when they released, and I'm so glad I did. I ordered a pack, which was enough for one of my keyboards, just to give them a shot. I'm no switch reviewer, but I found the tactility, feel, and sound excellent. On top of that, they do look very nice.
The bump begins right at the top, with essentially no pre-travel. They sound very clacky with GMK caps/PC plate, similar to shaking a paint can. They are slightly scratchy, but personally I prefer some scratchyness to a perfect smooth switch. There's a slight big of spring ping if you listen with your ear next to the board, but it's not enough to be noticeable during normal use.
I look for switches that don't require modding, and these are exactly that in my opinion. They're a great tactile option and I'd be happy with throwing these into any board. (