Just Rented Forester 2016 3171ds for two week - Any advice?

Thanks so much for all the great feedback and tips. I won't forget my meds... :>

One thing I'm not sure I understand is this "rental outfits never explain/advise on the use of TH. With TH engaged long down hills will be a piece cake with little or no use of the brakes required and you won't burn a drop of fuel. You will also get better shift points especially when climbing."

We will not be towing a vehicle. Is this still relevant?