The conservative design and how small the Seagate Wireless Plus is an attractive feature for those who want to take their data with them on the go. I was also impressed its storage capacity, the long battery life and how easy it was to connect.
The confusing power button (which isn't actually a power button). It also lacks a clear power indicator to show how much battery life is left. Right now, a red solid colour means 20% battery life remaining, orange means less than 90% left and green, more than 90%.
If money is no object, then this is probably the best wireless autonomous storage device on the market. It is elegant, has tons of storage and a battery life that is superior to almost all of its competitors.
I would have wanted a proper on/off button as well as a USB port to use it as a charger for a mobile device, but that might be a step too far. One thing to bear in mind though is that 2TB is a lot of data to lose, so I'd encourage you to regularly back up its contents or use it as a transient storage device.