I've found X1 useful for finding email. It supports search by subject, sender, recipient, date range, but most importantly, by text within the body of the message. It's also proved extremely helpful in finding files, again supporting search by title, type, date-range and text in the document, including pdf. This can be a life-saver. But the reason I'm writing this review is to note the extraordinary response to a support question that I received from X1 Customer Care Representative Chris Wheaton. He provided an explanation of why my problem was occurring, and the remedy. He did this in a remarkably clear and helpful way. He then went on to provide recommendations about configuration changes that would benefit me (I'd send a zip produced by X1's diagnostic tool). He outshone any support person I've worked with previously. Hat's off!

A very through search using ONeDrive, Outlook, Dropbox, and my hard drive

the speed, the multiple sources that can be indexed in a single product, the automatic highlighting within the files, use it for File System searches as well as Outlook and multiple mail accounts, sharepoint, onedrive box