Best TA I've ever had, super chill dude, amazing teacher. He would take the time to break down every step in each problem. He also explained the basic approach we should take for each type of problem which really helped me a lot. Maximize his office hours and sections cause he explains everything.
Spencer is the best TA in the Econ department I've run across. As an alumn, he's been through the coursework firsthand and explains it really well. Super cool guy.