I recently experienced an issue where discounts were not showing correctly in the cart when adding bulk products from my custom-built page. Even though it happened right before Black Friday — one of the busiest times of the year — the Opus Cart support team responded incredibly fast and resolved the problem quickly. I’m genuinely impressed with their efficiency, professionalism, and willingness to help, even under pressure. Excellent support — highly recommended!

I’m really impressed with the Opus Cart Drawer & Cart Upsell app! It’s simple, clean, and super easy to use—perfect for my small business. The features work exactly as I need without any unnecessary complexity. What truly stood out was the support. Vivian and the developer David helped me out on a Saturday evening, which is absolutely exceptional customer service. They quickly understood what I needed and solved everything with patience and professionalism. Thanks again guys!

super help with VIVIAN and developer DAVID they made 100% what i expected super cool help i asked many customization according to my wish without any hesitation they did i'm glad i choose

best cart drawer app I've used. Very customizable and great, fast support for CSS custom code. Vivian is really taking care!

Vivian and Mia did a fantastic job doing customizations to the upsells after I reached out to them. Only took them 30 minutes to make the changes I needed! Thank you!

Awesome support! They responded really fast and helped me perfectly. The app is amazing — I can really recommend it!

the app is very nice, very fast to load and offer many customisation at a very reasonable price. Customer service is also very helpful.

Fantastic support! Fast, easy and flexible! Will definitely use this app for more of my Shopify stores. Big thanks to VIVIAN, LULLA and AYLIN!

Great app. Full of key features and looks very sleek in the cart. Lucas and Ryan helped a lot in custom support.

The customer support at Opus is next level, they are always patient and they make sure they help you out to the best of their ability even if the problem seems really technical or hard. I was really pleased to be helped by Vivian and Ryan in the developer side, the work they do is really A+ and I will even want to have them in my personal store because of how good they do their work. Never imagined Opus will have developers at their disposed, many apps when the problem is really technical they always follow up with your problem and it even takes days to get resolved but in Opus their developers are like customer support agents that they are available whenever needed. Very much recommended app way better than UpCart too and the cart drawer even looks better and is more customizable!