I bought this vacuum to replace a 15 yr old Dyson. I love all the features but have two features that would love to see improved. First, make the cord longer, I now need to unplug and re-plug in to reach all areas for my house. My previous vacuum reached all areas from one plug. 
Second, the vacuum comes with three great tools but there is only two slots to store the tools. I use all three so it’s inconvenient to have to store one of them elsewhere.