Help request: Expert feedback on my AI-quiz app

Hey Product Hunters, I'm working on a little quiz app that lets you generate any trivia-style quiz using OpenAI, then play together real time. The target audience is families and friends, or barring that internet strangers. It can also be a little ice breaker with a survey mode for running live, shared polls on any subject GPT is willing to generate. Now, I've had a lot of fun playing with the family, but I'd really like some feedback of the expert product thinking kind. It's a one man project, let's call it pre-seed, and I'm absolutely at the edge of my capability in regards to UX on this thing. An experienced take would be so, so welcome. The web app is here: https://qaiz.app/ - it will be a paid product (I can't do openAI api access for free...), but I'm handing out a lot of free credits for March to Product Hunters! And I'll be eternally grateful!