I have not used technobit myself, but I have seen that he is very fast on designing new miners. Why thumbs down?
There are a number of unresolved issues with some customers as well as scores of customers that were poorly treated and lied to directly and this is well documented in the threads. I can not recommend a company that is unwilling to resolve customer complaints. If those who were burned are made whole then I am more than willing to change my opinion. At this point I don't see how that is going to happen given the stance of the company towards some of their customers. Given what passes as customer service it is not a company I would recommend based on even present threads in the last few weeks with regards to RMA's.
This is not a guide on how fast you come to market. It is a guide on how well you deal with the consumer bottomline and there are clearly persistent issues with this company and their treatment of consumers. I would never personally recommend a company that has outstanding issues with the community.
As an example Avalon would be thumbs down until we are given the whole story of what went down during the chip fiasco last year. You can't rely on a company that has willfully ignored the community asking for accountability. As such you are much better off dealing only with companies that have proven trustworthy. Again my opinion but there is certainly less risk involved dealing with companies on the THUMBS UP side vs. the THUMBS DOWN side.
Bitmain or Rockminer does very well shipping almost real time with minimal delays / pre-order and at a reasonable price. Why not use them over a company that could be suspect?
My personal choice is Spondoolies and Bitmain. They have both delivered on time, Spondoolies disappointed me a bit with underperforming sp30, but I am sure the compensation will be fair.