I have experience with Pokeys and it didn't work well for me, possibly due to interference. As i have said in another thread, documentation is not good, leading to constant questions.

As far as the market, we have to understand that Chinese don't care at all to make a controller to our needs. Their internal market is much bigger than the whole world market for controllers!!! So don't expect wonders here. They do what they need, so until they need it, there is no development.

The big problem with them is closing even Open source which they use for free, mainly because of fear somebody not to copy what they do. As they copy constantly of course, so they fear the same fate . then comes the copy of a copy of a copy...