It is very easy to use, it allows you to convert mbox file into pst without any hassle or time wastage.It does its job well when there is more than one mailbox for converting at once. I have no problem while doing my task as per requirement. There is nothing much that i dislike about it. If you want simple tool then go ahead but if you need something complex like converting multiple mailboxes into psd at single click then do not go for it because it will be difficult to understand and perform all tasks easily. Email migration from unix server to windows server.