As long as you only use it as a supporting tool, thats completely fine. But i had several generated scripts that simply failed at properly matching the beats. Sure, they reacted to the audio, but the interval between beats was quite inconsistent. It also depends on the video here, the clearer the beats, the better the tools.
And as i also said, i use a script for the upstrokes. Which is otherwise a very tedious task. (i havent posted the script here as its VERY buggy and havent bothered fixing it, but maybe i should just decide to fix it).
CH scripts have a lot of parts where lazyness can be helpful. Using these methods isnt bad at all, just make sure you check the result before uploading it. A missed beat or severe missalignments in a CH video is very distracting and makes the diffirence between a good and bad script.
EDIT: since i mentioned the script here now, i at least fixed its major issues:
https://discuss.eroscripts.com/t/chgen-for-ofs-cock-hero-upstroke-generator/94874
I hope it helps 