All the makers have quirks. For example, Magnum has a huge design fault on their inverter/chargers. The cooling fans are 120 volt. So if you shut down the inverter the cooling stops. (burn, baby, burn was my result). To be fair, they did stand behind the warranty.
There are rumors about Outback, too.
I don't understand why solar charge controller prices have not dropped much at all.
My favorite controller for small systems is Grape. If I do upgrade the solar (after all I purchased in 2005) I might just get 2 or 3 of their MPPT units. It would be cheaper than buying one large capacity controller, and warranty is at the local Home Depot.