The only reason for the 3 star rating is that I believe the restaurant/bar differentiate between people who use Groupon vouchers and those who do not.
My reason for this comment is that we were seated opposite a couple of ladies (who were not using vouchers) and each was presented with their own stand of cakes/scones and yet our party of two (who were using Groupon vouchers) was presented with one stand of cakes/scones to share.
I think it should be stated in the small print that customers with vouchers can expect to receive less food than those without, paying full price. I wonder then how many people would take up the offer!
However, we couldn't fault our waiting staff, who were very friendly and pleasant.