I got my book. I really like it, still reading through. I do not assimilate PDFs well so now that I have print I can make some comments later. This experience has turned me off of crowd funding, not T&T. The delays did cause them to miss the opportunity to beat D&D5e to the market, which is a real shame. It will be a struggle to get players interested after we have been playing the other game now (it is really playable as compared to other editions of the other game).
Freedom favors the bold. The rules are a tool, don't be a tool of the rules.
These kind of delays happen to every company, whether they crowd fund or not. The difference is that in crowd funding, we get to see them. Normally, the product just shows up on the shelves, and you buy it, without knowing that it was suppose to be out weeks or months before. The other option is to ship on schedule, but put out an unfinished product. This is the option that software usually takes, because they can patch it latter.