I built a simple invoice maker and I'm looking for feedback

I wanted to make creating invoices less of a hassle, so I started building my own invoice maker. Yes, I kinda gave up halfway 💀 but here it is! I'm trying to keep it simple instead of making people deal with a million features just to create one invoice 😭 Would love to know what you think! What annoys you most about existing invoice tools, and what would make you actually want to switch to a different one? Here's the app: rivo-pi.vercel.app I've also attached a demo using fake details so you can see how it works! Honest feedback is appreciated 🙏