Opus Cart Upsell Cart Drawer

Lulla and developer KHANG are so helpful. They understood all I need and helped me hiding the quantity selector. I will always recommend this app. This increases my conversion rate. Everyone should try it.

LULLA and their developer Khang have been absolutely incredible to work with. Their customer service is outstanding they’re always available when we need them and consistently go above and beyond to help. The product they offer is excellent, and it’s clear they truly know what they’re doing. We couldn’t be happier with the support and expertise they provide!

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!

Excellent app and outstanding support! LULLA from support and MIA from the dev team are always available, extremely friendly, and highly competent. All requests are implemented quickly and exactly as expected. Truly a pleasure to work with — highly recommended.

Amazing support and functionality! Lulla and Khang went above and beyond. The app design is sleek and has great customization. Would definitely recommend!

十分感谢Vivian，他帮我做了很多，定制内容，修改代码...... 帮我把整个应用做了很完善的工作，让我可以省去很多麻烦的事情，总之感谢Vivian，我会推荐这个应用的~

Our request was a bit complicated in terms of customization. It wasn’t something we could set up by ourselves. The support team stepped in and helped us adjust everything exactly how we needed. Communication was smooth and responses were quick. In the end, the cart works perfectly for our use case. Very good app with strong support.

Nice app, easy to use and stable. The cart experience is much better after installing Cart Opus. Support is also great, quick reply and helpful answers. You can tell they care about the users. Would recommend.

Vivian from Opus Cart Upsell has been absolutely amazing! She went above and beyond to help me set up and customize the app to fit my store perfectly. Her responses were fast, clear, and super friendly — she made the whole process smooth and stress-free.

The app itself works great and has already improved our upsell conversions, but what really stands out is the quality of support. Having someone as attentive and knowledgeable as Vivian makes a huge difference. Highly recommend both the app and the team behind it!

I noticed fewer abandoned carts after switching to this drawer. Customers can see all their items clearly, adjust quantities, and add recommended products without leaving the page. It creates a smoother flow.