Mammoth is truly mammoth in terms of size. I skied there two days and only covered a quarter of the terrain. Not much space for beginners (relative to the overall size of the mountain) and it is broken up into three different areas...meaning a beginner ticket has to take a shuttle to ski all three areas. My fiancee had took a lesson both days, so I was able to ski more advanced slopes, thankfully. Saturdays are ridiculously crowded at the lodges, but it never feels too crowded on the slopes. The weather is tricky and changes by the hour at the top, so you need to plan ahead. If you catch it after a big snowfall, it can be epic. Accomodations are ample but they really cater to the condo crowd, so look to go with friends. Only downside is the long drive from LA and the price of lift tickets, but I will go back a couple times next season for sure regardless.