I have three MEMS3 ECU's for a MG TF135 Standard SAIC MG map, K-Maps remap programmed by K-Maps, and SAWS remap programmed by P-Scan.
Both SAWS and K-Maps give a smoother/nicer throttle response, SAWS seems to have better top end, with K-Maps having a little bit more torque at lower end. This is my subjective view an after several runs swapping ECU's back and forth.
On the stopwatch could not split SAWS/K-Maps.
Cheers, Mark