Pros:

Marc's voice is amazing and he really got into the music.
He sang his two big English hits "I Need To Know" and"You Sang to Me"
He was very humble and engaging.
Jennifer sang most of her hits, and didn't waste time on album tracks.
She sang the appropriate remixes to her songs where the remixed version was more popular than the original, which was very pleasantly surprising.
She looked amazing.
Her voice actually sounded good for her ability.
Like Marc, she was very sweet and crowd-pleasing
They had great chemistry together at the end when they sang their duets.

Cons: