The most convenient place to sit and relax is the entrance to the subway from above, it's not far to the fountains, to the aquarium, and in principle to everything, and there are always free places and it's not necessary to buy. Do not buy a cheesecake in any case, I thought it was sweet, but it is made of meat from some kind of insect or mole.
A standard mid-level chain coffee shop. Coffee is not strong enough compared to their main competitor. If you want a stronger one, then take an extra shot of espresso.