Among all the praises, well, there are still things they could fix/upgrade. Some of my printers don't wake up from sleep in certain networks and clients report them as offline (a widespread problem if you search for it). Also it'd be nice if they'd support wifi beyond N (this is sadly common among wifi devices in general).
I've bought at least five brother laser printers because I wanted one everywhere I go. They've all worked great except for the last one (HL-L2390DW). That sleep problem has caused me to consider other brands instead of just buying my default.
I'm betting lots of people haven't experienced this, because their old printers are still working great.
