I'm so glad you like Donna! She's my second favorite companion (after Martha) and yes she is great I just wish they didn't give her that send off. Also I am so sorry you're on season 4 not because season four is bad, it was one of the best seasons ever but because the season finale is just so sad it's like owowowow I don't cry at season finales but I cried at that one and I'm just so sorry cause it's painful like get some tissues and prepare yourself.