As impressive as it is gaudy, especially after the restoration (which was quite controversial), it's really something to behold, and a must see if you are in Rome.
The chapel Features frescos by not only Michelangelo, but Perugino, Botticelli, Ghirlandaio, Rossellini, and Signorelli as well. Truly more spectacular in person than photos could ever convey.
But what do you think?