If you get a tufted ottoman consider the depth of the tufts — especially if you expect to eat on it. Crumbs will find their way into the tufting and are not always easy to get out. Round coffee tables aid circulation especially where there are many available seats as in this example. If not every seat can reach the table make sure there’s another surface at hand.
Solid tabletops usually have a very square corner. If you have little kids or the circulation is tight allow extra space at the ends so it’s easier to get around the corners without hitting your shins. Go for color with an upholstered coffee table as it will draw people to the surrounding sofas and chairs. Top it with a tray to hold books and other items (and to soften a strong color such as the pink).