I have to say, I'm pretty skeptical of AI assistants, but for reviewing documents I've found them really useful.
My cofounder and I used this on our Techstars application and got a ton of utility out of it. It's certainly not perfect, but we're not very experienced and it caught some questions we've heard from other applications before that we forgot to address and points we didn't even consider.
Highly worth a try given there's a free credit.