The fact that ACC and DPTR are not included in the R0-R7 window is hardly cause to declare a product substandard
Agreed, if that was the only thing. I just gave that as an example.
Please note that I 'praise' the price/performance and state over and over that it is a) a work in progress and b) very useful.

I have never considered it 'substandard', if it was I would not use it, it just need some TLC to reach a professional level.

Erik