Impossible to tell without seeing your kitchen and how you cook
It's a decent size. Just compare to the cutting board you have now. If you are happy with that size and the new is at least as large, you won't be disappointed.
Keep in mind that area goes up as the square of the lengths of the sides, so a fairly small increment in length and width adds more real estate than you would intuitively expect. for what it's worth, the board you linked to is pretty generous, in my opinion. Larger than that gets into truly big (and heavy) territory.