Hosting review websites are all over the internet, but you can never be sure of how authentic they are. A lot of the websites where people can freely contribute a review of the service they’ve received from one company or another are used by the companies themselves as a reputation management tool.
More trustworthy websites are generally forums where they have a visible community of contributors. On these websites you can get a general idea of the service you may encounter with certain companies, with the benefits of an engaged community who can fact check thanks to their experience in the industry, and have the expertise to perform a proper judgement of the services should somebody claim they had a poor experience which was entirely the hosting company’s fault.
In review, you should leave websites which provide reviews of hosting companies alone, unless you can be sure that the information you’re getting is from real people.