Summary: I like this printer. I was hesitant to purchase because of some negative reviews, but I am glad I did. Easy to install and works great. Only issue is slow to print pdf files, but there is a driver that you can install (I have not done it yet) that is supposed to fix that.
Summary: Home office use. Does not get a lot of use but it does scan to email, copy, and print without any issues. I haven't used it to fax yet. It's quiet, sleeps when not in use, lets me print from my Apple devices, etc. No complaints at all so far.
Summary: For new home based insurance agency, did a marathon online research on AOI printers (still have a 7 year old HP 7300 AIO for backup and color). Bought the m425dn 2 weeks ago. Was initially swayed by some negative reviews (mostly from late 2012 before firmware release), but decided to buy this unit vs.
Summary: We needed a low/mid usage printer and the copy machine was dead. Decided to kill the old fax machine and go to the all in one. Works perfectly. Printing/copying/faxing about 3,000 pages a month in a semi dirty location. Can't tell how well it will hold up but installed easily and does a great job.