I'm an object desktop subscriber. All I have installed right now is Fences and SpaceMonger. I used Start10 for quite a long while and I do really prefer it to the Windows 10 start menu. However I was forced to uninstall it. 95% of the time, to launch a program, I hit the start key on my keyboard and then type a part of the name of the program I want to launch. However, I eventually realized that Start10 was omitting (not able to find) programs that the stock Windows 10 start menu can find. For my use case this totally destroys the functionality of Start10 and I have to limp along with the Windows stock start menu instead.
The reason I prefer Start10 to the Windows 10 start menu is the other use case that delivers 5% of the total value, which is if I want to browse the start folders. Windows 10 removed one level of nesting and it very negatively affects my ability to access certain utilities when I have multiple programs installed from the same developer. Start10 keeps the full nesting making it much easier to find the right program.
None of your offerings that customize the way Windows looks are interesting to me. It looks good enough already. The productivity tools are more interesting but they have to work. I haven't tried Groupy because I actually think tabs are a much overused metaphor that just makes it harder to find things, but I might give it a shot at some point.
I thought I was your major demographic but judging from the responses that may not be the case. I have subscribed for a few years. The failure of Start10 really made me think hard about resubbing this last time. The app world is in a race to the bottom as you said in your email and I believe in funding the projects I find useful ... but not being able to use Start 10 really calls the value exchange into question for me.