AMT's main problem is poor communication and a bit more ego than justified.
Here is how I see it; what AMT is selling are Technobit Bitfury boards crammed in a Lian Li case. Whoopdeedoo. This is something most of us could do easily. Now thats not to say there is no value in doing that, Im sure some people prefer that over a bare stack of boards, even if the latter would be cheaper, more space efficient, and provides better cooling.
The problems however are more than just "communication":
- They've consistently failed to deliver on their shipping promise.
- Their specs are lies. Performance claims for the bitfury gear are grossly exaggerated (64GH per board where as Technobit advertises those same boards as 40GH), the power efficiency claims for their coincraft gear are also lies. The promised shipping date for their coincraft gear is almost certainly a lie.
- Their claimed VAT tax avoidance scheme is either a lie or completely illegal. Possibly both.
- Whether intended or not, their "shill discount policy" actively encourages people to lie on their behalf. Furthermore, they make several claims that I find very hard to believe, like shipping large volumes to "rich" individuals and anonymous large scale "corporate customers". What large scale mining operation would be interested in their form factor? Why would they order with an unknown, unfindable company? Why wouldnt AMT post some pics of those machines before or after deployment?
IN short, at best they have zero integrity, and if you add their attitude towards (potential) customers which seems like a carbon copy of Inaba on a bad day, it all sounds like BFL's vices on steroids without the actual technical innovation. At worst its a plain scam.