SellUp: Add ons & Cart Upsell

SellUp is a Shopify App that has received a mix of positive and negative reviews from ecommerce merchants. The positive aspects highlighted by users include the ease of use, effectiveness in increasing average order value (AOV), quick and helpful customer support, and the ability to customize upsell offers to suit their products. Users also appreciate the app's features for cross-selling and cart upsells. On the other hand, some users have raised concerns about transparency in billing, issues with upsell orders not being generated, and difficulties in setting up certain features. Despite these challenges, the majority of reviews praise the app for its functionality and support provided by the team, particularly mentioning Dan as a responsive and knowledgeable support representative.