Pros: Proximity, snow, value, size
Cons: limited terrain, resort size
Don't expect a diamond for the price of glass. I've read all the reviews and they're all true from that person's perspective. The key word is perspective. If you go in with a realistic perspective, Boreal is exactly what it can be...a ski area close to Sacramento that does the best it can with what nature has provided. I spent $300 for my season pass and $70 each for 3 kids and one more at $25. That's $535 for 5 passes. I can take the kids anytime, any day or night and even use the tube park if desired. Yes it's a limited 500ft of vertical, but when we go to Squaw, Kirkwood, Alpine, etc, guess what, they only ski a selected 500ft of terrain there as well. The money we saved this year is spent on equipment and lessons. In a year or 2 we'll look to get passes at a larger area, but for now Boreal will be their version of Buck Hill (reference L. Vonn).
Blue to maybe black diamond runs & limited/outdated facilities are certainly drawbacks. Set your expectations correctly to have fun or try one of Tahoe's other great resorts.