Excellent App & Service - This is the easiest way to add a well-implemented "sticky cart" to your product pages. Zeno's support quickly addressed some bugs in this new app after I reached out to them. It is now working flawlessly on our stores. They're looking at a few other minor things that we'd like to see, like an option for the sale price to be a custom color vs. black. For now, you can customize whether the sticky cart bar appears on desktop or mobile, where it displays (top or bottom), if you want it to only show after scrolling down a certain number of pixels, and button text and styles. Another nice touch is that it keeps track of any variant options a customer selects (size, color, etc.). The bar shows the correct product image thumbnail and price (adhering to any bulk or sale pricing) based on the customer's selection. The only thing really missing is usage analytics/reports. Perhaps they'll add that in a future update.This app is a great deal and I'd highly recommend it. You'd pay considerably more to have any developer implement this for you.