Pros: Lots of terrain, tree skiing
Cons: Long lift lines, tons of boarders
I was initially pretty skeptical of Sierra-at-Tahoe, thinking that my money and time would be better spent at Heavenly which has more terrain, lifts, and of course lake views. But I was pleasantly surprised by the amount of ski-able terrain at Sierra. IT hadn't snowed in days but you could tell that on a powder day, Sierra's trees and more technical runs would have been pretty awesome. And even without fresh snow I was able to find some nice bump runs and downhills to keep me busy.
The crowds at the mountain's main lift to the top, the Grand View Express, are a total bummer though. Sierra has a $99 "VIP" pass that allows you access to skip the line which, if you're a regular, must be totally worth it since much of the good terrain is off this lift, but pretty much everyone at the mountain is riding it up and down. We escaped to West Bowl and basically just alternated between the main bump run and the downhill off this lift for a while, got a bunch of runs in but we did miss out on some of the more interesting trails as a result.
Overall, I will go back on a day with more snow, this is an underrated mountain in my opinion, if they could just fix the lines at the Grand View they'd really be in business.