Route from De Rust to Port Elizabeth

Hi everyone, I’m trying to finalize my 2-week itinerary for mid-February. We’ll have traveled from Port Elizabeth to George, stopping by Plettenberg and Knysna, and we’ll be around De Rust at the end. We want to take the return route to Port Elizabeth with an overnight stop since we don’t like driving for long hours. We’re torn between going through the Karoo with a stop in Steytlerville or taking the R62 via Joubertina and Kareedouw. Which option would you recommend, please? Just to clarify, we’ll have a compact car. Thanks for your help! Maeva