My December RocksBox was my favorite so far! It really is important to fill out the survey after receiving your boxes because they really do listen! I never filled them out up until my last two boxes.
Shipping and returning is super fast, I'm in CA and as soon as I send my box out it takes about 5 days to get another one which is awesome. Memberships are as low as $15 a month.
I don't have the price list anymore but I do remember the rings were the most expensive pieces at $96.