Specifically, my impressions:
Cheap processing
Unstable cover with document feeder
Paper cassette is a bad design, it lacks a high edge inside the printer. When loading paper is always the danger that is this pushed over the edge.
The USB port is located inside the printer, for Anscchluss of the housing cover has to be opened
Power and USB cable from the printer side kommem - impractical!
The installation for the wireless was a nerve-wracking game of patience. Unfortunately it did not work as described. Although the printer quickly had connection to the router, it was he (several times ....), the computer does not display even after installation of all drivers. Tip of Brother: checking my AV software and firewall. Because it was not a repeated turning the power off then led to success.
The software for printing and Scannnen not working (Windows 7 Ultmate / 64) She showed menus and icons, but they did not respond. Scan Wireless Lan did not succeed, the device was always appear offline.
The machine prints slowly, at least over wireless. The results were disappointing quality. Text was sharp and clear, but charts, clipart .. were far too pale.
I never had a printer whose installation, operation and print quality was so bad and at a comparatively high price.
Too bad, I had to try out other Brother printers that worked well.
From this I can only advise!