It's a great addition to my Xoom tablet. Works great so far and I haven't had any issues once I got it working. However, it took a bit of tweaking to get it working. It comes formatted exFAT which is not recognized by the Xoom. Attempting to format it as FAT32 on my Windows system failed so I tried it on my iMac. It worked just fine and once formatted I used Acronis True Image Home 2012 with the Plus Pack to clone my 32GB MicroSD card to the new 64GB card. All apps, and data transferred correctly (even apps installed on the SD card). Only time will tell how reliable this new technology is but I've always had good experiences with SANdisk in the past.