I was gifted a Traveler several years ago. It is overpriced and bound to the vendor data service for any connected functionality. You can read and write off of it via USB, but it doesn't actually use a true filesystem for your text files, it writes them into the main app's sqlite DB, which in the past has had data loss issues.

My version uses ancient releases of Node and React for the UI for some horrible reason, and it is painfully slow.

I've rooted mine and have it as a project to look at the new OS and decide what to do with it, but if I had the cash I'd look elsewhere.