Efficient, basic device well priced device which seems well made and 3 year limited guarantee is not to be sniffed at. Hopefully longer lasting than the WD products I have used and is quite compatible with my i-mac and Time Machine.
Very easy to use & to configure to iMac via disk utility; It is small and robust & does not need an external elect; supply, just USB unlike my 2 previous WD essential ext drives that have totally failed; Basic storage for pics/music/documents
1st time 4 hrs to back up via Time Machine; Lack of software makes use more intuitive unlike WD where you can see and ID files quite easily so retrieval may be a bit more difficult - but they are there