Tucketts™ review for Monster Cart Upsell+Free Gifts

This is the worst app! It was recommended by a team that's helping me with the website, the cart was changed to this one before Black Friday, the app works for certain people but for others don't. We got complaints from clients that couldn't add items to cart and when we test some of us could, some of us couldn't and this happened in the busiest time of the year. DO NOT USE!