I recently tried using Vercel's Edge Functions for the first time when creating my AI Testimonial Generator.
I've been pleasantly surprised with how easy it was to get up and running. The biggest win for me was avoiding the cold starts serverless functions experience.
There are some major limitations with edge functions, but the speed boost definitely makes it something to consider.
I wouldn't call them the future. They certainly look attractive for a small project, though. I think the back-end request latency alone would probably steer me away for most of my larger projects. Definitely a strong niche solution, though, and I think fits well with the rapid-iteration hacking mindset!
If there's an easy way to transition the code to a more a scalable solution + the cost makes sense, I'd definitely want to give them a shot on an MVP.