Shorebird works great and I've been using it for a few beta apps for some time now. I'm really just thankful that an option for OTA updates exists for Flutter apps and with very reasonable pricing too.
Overall very happy as a Shorebird user and I'm sure I'll be adding it to pretty much all future projects.
Wishing the team all the best post V1.0 🙌🏻
Pretty amazing to see such innovation in flutter ecosystem. If you are looking for ability to fix code issues without going through the app stores, then you should try Shorebird