Any thoughts on WD's My Passport Wireless Pro as a travel back-up solution?

I usually bring my laptop around as a back-up "machine" when I travel, but the laptop is quite old and getting a bit too slow. Found out recently about the WD My Passport Wireless Pro which has a SD card slot that would allow the device to back-up images from the SD card. Having this would mean that I no longer need to bring my laptop around.Anyone on r/photography used this? Any thoughts about it?Link for reference: https://ift.tt/2XHsTEa via /r/photography https://ift.tt/2SWSRQu