Second Brother lasers. My HL-3170CDW color laser is still going strong after four years. Works flawlessly with Linux, OS X, and Windows; toner lasts forever; and print quality is fantastic.
Yep, my Brother MFC-something-or-other laser went about 10yrs I estimate before something went south with its brains. Never had a problem with the cartridges or any of the mechanicals, but I didn't use it often either. A brand new Brother MFC-L2740DW laser sits on my desk now and if it lasts 5 years I'll have gotten my $170 out of it.