I agree 100% with the original post. New Vegas is incredible, I don't understand the negative reactions to it. I save often with multiple slots, so even the occasional bug ends up being funny instead of soul crushing.
Cass is my favorite of the companions I've used (Boone, Veronica, Lilly, Cass).
Her Whiskey Rose perk is amazing. You ignore the effects of alcohol withdrawal, and drinking whiskey specifically provides an added boost to...some combat stat that I am forgetting right now. Before I met Cass, I hadn't touched a drop of liquor in Fallout. She corrupted me and I love it.
It's also fun to have your own whiskey in real life and take a sip every time Cass says "I need a drink."