I have two of his early ones and they are GREAT!
Mine have "surface irregularities" that are not a problem (ie a "very" slight dimple on the top, and very light pitting on the sides, you have to look carefully and/or make the light hit them from certain angles) and he says that he has continued to refine his process to resolve it.
The keys feel and sound fabulous!
The weight/inertia is actually a good thing, I wish I had the money to populate an entire board with them.
Maybe you are waiting for him to cast legends into them, but if you are OK with blanks, you really should check these keys out!