I still have a little trouble with the concept, I'm still a little disappointed, but for its price (without disk drives 45), I will not complain! The Android app is ridiculous limit (nothing to do with DropBox, for example). It makes backups, not really the clouds! If I work on a document on the NAS via my tablet, there is no update to the PC ... I still do not understand how the folders "Public" and "Sharing". So in short, not so intuitive than that! If not, of the supplier, no complaints: very quick reception! Remote access, so-called easy with the picked-usb is totally inoperative!