Bumped from I liked it to I really liked it on re-read after getting a lot more exposure to the Cosmere. Understood and appreciated a lot more during re-read. 
 The entire trilogy suffers from early writing but even so, it's way better than most books out there. This is nowhere near the delicacy and finesse of his more recent writing but it's solid. Therefore the four star "I really liked it bump". Stormlight is still Amazing. Emperor's Soul is still Amazing. Rithmatist is still Amazing. That puts Mistborn 3 (and the entire first trilogy) into a solid "I really liked it", even if it's closer to "I liked it" than "really" on the whole.