Black & Decker only released the FEJ520JFS four months ago.
The FEJ520JFS is cordless, unlike most of the other vacuums that have been around for the last year which are not cordless.
2 Reasons Against
Does Not Have a Brush Tool
The FEJ520JFS does not have a brush tool. Most of the other vacuums that have been available for around the same time as the FEJ520JFS also do not have a brush tool.
Very Low Suction Power
The average suction power of recently released vacuums is 380W. At only 40 Watts, the FEJ520JFS has a fairly low suction power compared to most of the other vacuums that are a similar age to the FEJ520JFS.