Great runs and great powder.
Very antiquated/spartan accomodations
Sierra isn't as fancy as her boring, overrated sister Northstar, but the runs and the snow are much better. You can find super long blues that traverse the mountain or steep blacks with deep ungroomed snow and chutes. I went with 3 advanced riders and we had fun blazing down powder runs and zooming in and out of trees. Tons of natural jumps and tree runs to play in.
Not a great bar or restaurant to be found, but if you're looking to ride it, along with Kirk are South Tahoe's best.