MPR Tools & Equipment review for Advanced PreOrder‑ Partial pay

Dealing with this app has been a total nightmare. They have applied changes to our live website theme that made the 'Add to Cart' button not visible on the product page, causing us to lose $$ in a day! Now, we need to spend extra money for an expert to retract what they did. Also, it's been weeks of going back and forth with them trying to set up the app, and we have not achieved anything! Installing this app is very disappointing and a total waste of time and money. Never again.