Can Cantonese learners actually use AI for accent correction?

I'm very skeptical of 'learn to speak' apps because most of them don't handle Cantonese tonal nuances well at all. I want to move past the basics and actually get corrected on my sentence particles. Has anyone tried using Chickytutor.com for heavy accent and grammar coaching, or is it better to stick to 1-on-1 human tutoring?