Summary: Previously owned a Brother laser MFC. It crapped out after a year and the envelope feeder never worked. Also, network connectivity was problematic on the scanner. This system, by contrast, if absolutely awesome.
Pros: This printer is awesome. It scans over the network to custom folders, and printers beautifully. I bought the add-on paper tray and loaded it with envelopes. Now I can print stationary (color logo) envelopes and stationary letters and don't even have to get up to hand-load an envelope.
Cons: None detected. I have not used the fax machine, so no comment on that.
Summary: With the limited use I have had so far, it seems a wonderful machine and does exactly what it is supposed to do with ease. Simple to use with a relatively compact design means that this unit is very well suited for the home/office.