5 /5 Hanah Britt: I went to Mainstream Boutique for the first time this morning and can’t say enough good about it. They have so much inventory and the quality of the clothing is something you can’t find in chain retail stores or other boutiques. Their owner was warm and helpful and she has thought of every detail to make her shoppers feel special. Down to cute little bags, display boxes for gift cards, and holiday promotions. This is a gem for Champaign.