I had heard that this was a sandbag at 5.8, but wow! That first pitch was 5.9+...the rest of it seemed like 5.8. I bypassed the chimney because I followed this route and my partner didn't think it would be very fun to lead. I had a great time! The roof was phenomenal.
Alternated leads to do this route, so I still want to lead it all. P4 is a little intimidating because of the exposure, but the climbing is pretty straight forward. The chimney was easier than I thought it would be, but I was following.
I discovered Aries over a period of years. First just climbing P1 and P2, then traversing over to GNS or Taurus. But finally I climbed the chimney, which was scary. Eventually I learned how to climb it...then I forgot it later and had to back off! P4 is such an awesome roof...