*The compiler is not nerly as efficent as Keil.
*It pushs everything on the stack for an interupt.
*it wastes RAM and ROM.
*It draws around 40 ma @ 5 volts in my application. That was glossed over in the data sheet.
*The code for the different familys is different.
*The emulator does not handle statics or local globals.
*The analog ground is set to 2X vref. Voltage readings from true gnd are a pain.
*The PGA drifts with temperature.
*The internal buses have limitations. Wiring it is like trying to scedual college classes. (got a conflict move this here and then that goes there....)
*The A/D ends up with a large offset.
*The A/D is part software and part hardware. It eats up 25% on the cpu clocks.
It has many pluses, But it was too much work for a low volume project.