I love this route for its variety of movements and kneebar opportunities, especially the iconic no hands rest before the crux move! I'm 5'5" and start the route out by jumping from the ledge onto the starting jug hold, which is such a cool intro to the roof climb. This route really engages the whole body. Once you clip one of the chains be sure to continue upwards and top it out for the 5.13a Definitely a classic climb!
If you can climb 13a you have to get on this one. You really don't need to be 13a strong to pull the moves and even clipping the chains is only 12d or so, like EM said below, it's that topout that gives it the 13a rating.
I personally feel that it's a bit softer than other 13a's I've done due to all the rests and the great quality of them all. Very fun though!
Top out is a must for full 13a grade. Clip chain and continue on, then down climb from the top (similar to Body Wax).
Definitely stick clip the first bolt. If you're short (I'm 5'3") you have to jump or do a harder start (head first) to the opening hold but taller folk can just reach. If you jump and miss it's a clean fall - I've done it once... Several good knee bars. Be mindful of climbing when wet as to not break off holds.