I also think the story of Bill being sick is BS. I have emailed him numerous times and have left several voicemails but no reply. I'm not looking for any money back just some support for his product. I would never recommend this product to anyone. I'm sure that if I placed another order he wouldn't be too ill to accept payment.
What's wrong with your TT ?
I sent mine to Bill November 9 as he wanted to see if/why L298N failed. I have not heard from him since.
Now getting along just fine with manual tuning. If I had it back and working, I likely would not use it.