I use this ESC with my ECO Mini boat. It worked great for two seasons. Excelent for this price.
Throttle response is very linear, from 0 to full gas with plenty of steps (at least one for every dent in my gast stick ratchet).
Very simple programmable for timing. The feature I love most is the cut off, it can be programmed also to be simply a motor power reduction instead of a power off.