Hi Michael,

Aside from just being different from Keil, IAR has been good to me, their tech support has been thorough and fast. I've even had the same tech support guy for the six years or so that I've been using IAR!

The IAR compiler had been selected by my predecessor. Given Keil's focus on the 8051 and their excellent website and forum (IAR's forum really sucks) I would probably choose Keil if I had to start over.

Dennis