The webmail provided by migadu is just one client, there are a dozens out there much better for using emails. Migadu's service is not an interface, it's emails.

I just don't understand it. On the one hand, you can lose access to your mails and have almost no way of getting them back if you use GMail. On the other hand, you have an alternative but still stay with Google because their interface is better? I use an alternative and I don't care about the interface - it's good enough. I can read and write emails, there is human support, that's all I need from my email provider. I'd probably be happier if they had a better interface, but it's really not that important. I'm not judging it, that's your choice, but I just find it strange.