Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
They really don't have 'written' reviews, only based on stars 1-5 & amount of stars/reviews given (ie 50 reviews or 5,000). You can see them thru the device or https://channelstore.roku.com/browse