The sun images (sun_full.png, etc.) made me think you are showing the weather in the guest's location. I have changed my selection in the settings to stars, and I think you would be better using stars in your demo. 5 stars is the usual number for ratings, so that would be a better default.
When a new visitor views a guest list, it is not clear what the stars are for. A visitor might think "Has someone rated the guest who left the comment?". When really, it is a rating of my website (which is valuable!) So I have edited to code to add "Our website rating" underneath the 5 stars. You might want to do this in a future upgrade.
You mention somewhere that you would like us to leave the link at the bottom of the page. I would be much more inclined to do so if it was very small & discreet. I would prefer to see a small "Powered by " and then a very small logo link. The way it is, just EBR - no-one will know what that means, and, as I said, it is way too large. I realise the "Powered by" message would need to be in numerous languages. I don't know how difficult it is. But this is just a suggestion.