What frustrates you most about AI video tools?

Hey PH — I'm building ClipStudios.AI, bringing together Kling, Veo, Runway, Seedance, Wan and others under one credit-based subscription (launching here soon, but genuinely asking, not pitching).

One thing I keep running into: most AI-video tools reset your unused credits every month, which means you're either overpaying for a plan you don't fully use, or scrambling to burn credits before they vanish. It's a small thing, but it's the kind of friction that quietly erodes trust in a subscription product.

Curious what others here have run into — what's the one recurring frustration you've had with AI video tools (credits, billing, model quality, output consistency, anything) that you wish someone would actually fix instead of just adding another feature on top?

Would love to hear real experiences, good or bad.