Website review, Usability Testing

We are intresting in website trsting and user experience. To find something that may affected the conversion, feedback on functionality and bugs is also welcome. We need a tester who will go to the main pages of the site and try to choose one of the products, and then give a report or comments on how convenient and understandable it was and what elements you would change on the site, and so on. We need a feedback from people who came to us for the first time and went all the way from registration to buying any of the products.