1. I'd love to be able to tell my HL-4150 to not clean itself at midnight. Or really any time anyone might be asleep. You have an NTP server connection; use it! OTOH, my dad's Lexmark had that same stupidity. (I love buying professionalish products, but they seem to do everything they can to ensure office products are unusable at home.)
2. I've never experienced toner cartridges that leaked so much as the Brother one (yes, all four.) I ended up buying cheap 3P cartridges, and haven't had the same issue. They royally screwed up the seals/spreader somehow.
That said, it does print and is fast, so as long as I don't let it sit turned on for too long, it works.
Now they don't dry out and the printer can't sneakily squirt all the very very expensive ink into a sponge when you least expect it.