A far more interesting church than the black and white OTT Duomo, individually wonderful pieces, unfortunately a great deal of the frescoes etc covered in scaffolding when we visited, but it has no real feeling of grandeur. It's like a grand Italian market squabble with no sense of cohesion. Each contributor to the interior has done his thing with his own bit and to hell with contributing to the totality of the structure you can almost see the sculptors thumbing their noses at each other in perpetuity from either side of the church.
I too was a pilgrim to the tombs of those greats Galileo, Michelangelo and the plaques to such greats as Marconi but they only illustrate that those who presumed to decorate the last resting places of these immortals weren't in the same class at all.
Visit you should but the glories of Florence lie elsewhere