I will complain as quickly and adamantly as compliment.
A trusted, thorough review, whether positive or negative, with detailed information is some of the BEST information that prospective customers can get.
My situation with Promax for instance. Poor communication when they had my carbs. Reason given: "I can talk on the phone, answer emails, or work on carburetors". While some may see that as snippy, or that states the case for more staff requirements, I could actually accept that answer, although I (especially me) prefer a lot of communication with regards to progress of a particular job.
Also, their communication with me did step up when I had just got them back, when I really needed to talk with them, and it has been my schedule that has kept me from working on resolving the problem, and I expect and anticipate them being in touch once I get some dedicated, intense "hey I did this, this, and that and here is what I have, now what?" time.
I certainly hope to resolve my problems because I sent good (not great) running carbs to them expecting them to come back better, especially because I paid them to do the mods and run and preliminarily tune the carbs, and my engine runs worse than EVER.