I just finally said "okay, enough" to a stint with another one, from a fairly well-known company, whose developers seem to place more importance on "doing everything differently", than on creating an intuitive and approachable app. Not going to name which, 'cause I don't want this to be a "this vs. that" type of post.
Hash Inc.?
Nope! Though I have worked with that in the past.
Neat program, and has a nice workflow. As it stands, I personally see A:M as a kind of "niche novelty app". It's cool, Hash patches are an interesting way of constructing objects, and can yield some nice results (which ultimately comes down to the person using it). But it's not fulfilling any needs that haven't already long been addressed, and far better supported, with sub-d's.
I've always thought their marketing point about "Hash Patches being more efficient than polygons" has been overstated - especially as computers' graphics capabilities have become so powerful. IMO, if they ditched the spline/hash patch method of modeling, implemented sub-d's, but kept everything else the same, the program could probably blow up quite a bit, not to mention expand its compatibility, and viability in a pipeline, many times over.