The best V0 120 allows full parameter tuning via UART or CAN bus. Avoid "locked" versions that require proprietary dongles. Open-source bootloaders are a hallmark of quality.

Your mileage will vary, but the trend is clear.

The is a phenomenal piece of engineering when respected. The best version of this controller is not the one with the highest numbers on a screen, but the one that delivers consistent, reliable power ride after ride.