The interface isn't quite good. Everything looks a little low-quality. And maybe because they just started. For example, there's network disconnection. And by the time you send an email before it is delivered, it takes a while. I've also had some clients complain that it freezes at times. So, it's frozen at times and can be a little difficult to update. And sometimes you have to uninstall and reinstall it, and all that. Fr a cloud-based service, it's not quite seamless. But the only thing is that the UI is not very user-friendly. Everything just feels clunky. It should be more user-friendly.