Western Digital's My Cloud EX4 is a good introductory NAS for small offices, offering very good drive and data recovery, easy remote access, and basic business NAS features. It is not, however, ideal for larger SMBs or those requiring very high-performance storage.

A potentially useful product, but it’s not ground-shakingly novel and it does stretch the contemporary definition of ‘cloud’.

If you need storage that's available from just about everywhere, and you don't want to rely on a third-party cloud service to provide it, WD's My Cloud is a brilliant solution.

Western Digital's My Cloud has a gorgeous design and is a practically foolproof NAS for the home, with breathtaking performance. It's only weaknesses are a rather limited cloud interface and a lack of support for printers on its USB port.