Jill -
Warning - I bought one of those about a year ago and returned it after futzing with it for a couple days. It was horrible.
It has many significant weaknesses (doesn't work with some memory cards, wifi transfers are slow and unreliable, user experience is terrible, etc.) but it also has one 100% fatal flaw for me (read below). When this arrives, your husband will need to test it and decide if it's worth keeping, and if your trip is coming up fast, have a Plan B ready.
Short version: Good idea, but terrible execution. I found this thing to be fundamentally broken.
I found it pretty bad to use generally - confusing, difficult to use workflow, poor documentation (and I'm an IT guy who puts up with a LOT of bad user experiences). I could have lived with that. But worst of all, it had one complete deal-killer for me: whenever I copied images from a memory card to the unit (and then copied them to my computer) this device automatically changed the date/time-stamp on EVERY file to a single, incorrect value.
Context: Every digital file on any computer or other device has a bunch of details encoded in it. For example, the day & time the file was created, the day & time it was modified, etc. Photos have a LOT of this encoded metadata (dozens of details, most of which the average photographer probably doesn't care about or even notice). But even for casual photographers, the creation date is pretty important. The worst thing about this unit is that it changes the date stamp on every file to some incorrect, random date (it may be the date the unit was manufactured - mine was several years old but still sold as "new"). So after you use it, you come home and unload your trip photos, every one of them has the same date/time stamp (which is incorrect - IIRC it was some random date in 2015). I contacted the manufacturer and their support staff told me there was no way to fix this.
That's crazy. I don't want every photo I take for the next 5 years to all show up with the same random date stamp in 2015.
Your husband will want to look into this and do some testing as soon as this unit shows up. Until then, go read user reviews on Amazon to see all the issues people have with it. I see lots of recent negative reviews there that mirrored my experience last year. If it still has the same problems, he may want to return it and find another option.
Good luck.