and then the midnite classic has an arc fault feature. and ground fault feature. midnite provides a free website where you can log into your midnit classics. they can be connected to either 3 in series or 2 for 48v systems. you can calibrate the voltage. they have excellent customer support and a really good forum. like davidg said the can be wired up for follow me mode at very little expense ( it's actually a telephone cross over wire cable, ethernet cable can be used but needs the proper telephon plugs) they can be programmed to do all kinds of things. i don't think anybody would look back and hanker for a pmw charger. you can also hook up infinite number of solar panels, though they do not say anything about it in their manuals. you can limit the output. they can work together with their shunt to go to float mode at a programmed end current. they can even limit the current going into the battery, independent of what else is drawing power.
you can actually chat with the designers when some interesting question comes up. they will explain why certain things are like they are. they are listening to proposals and sometimes do them.
that's just what comes to mind.