yes, I think she is definitely less of a bitch than she was before. In 'Home' when Mercedes was struggling to be a Cheerio, she was so nice to her, and told her-her experiences. I like her so much better now than before and she looks so much prettier with her hair down.
yeah, she definitely is. the writers did this on purpose. they wanted to revamp the show and make people who were previously mean be good and vice versa. this was part of the reason why we had to wait 4 months for a new episode.
Quinn is being nice to people, before she was always growling at Finn and Puck, but now she's friends with Mercedes and helped her with Cheerio struggle, and Mercedes returned the favor by allowing Quinn to move in with her, I really like their friendship and I hope it continues with the series. I also hope Quinn will be nicer after her baby is born.