GrandNode has rating and reviews system. You can see them on every Product Page, if you check setting called "Allow customer reviews". This place is shown on image below.
If you want to add review follow this steps:
- Open product page to see site the same as example below:
2. Click on the "Add your review" link under Product Name.
|URGENT: Review must be approved by store owner. This option is configurable in Admin Area by selecting Configuration -> Global Settings|