@rob @zbrando

The mail client has a learning curve, one we are always trying to reduce. On the other hand, it can save you a lot of time, once you get used to it.

A few things to note:
1. You should not have to move mails to folders. Finding mails is generally fast without the need of folders.
2. For each folder, you can decide what to show in that folder when it comes to stuff like read mails, mailing lists, trash, etc. Once you have set that up to your liking, you will save a lot of time and it is a lot less work than to move mails between folders all the time.
3. Important shortcuts : G to mark a mail as read and go to the next one. E to view mail to and from a contact, T to view a thread.
4. Vivaldi differentiates between unseen and unread mails. Unseen are new mails while unread mails are mails you have not marked as read yet.

I know these are new concepts, but there is a reason a lot of us cannot do without this.