We've cruised with Cunard several times, but always at Britannia level, but for next year we are splashing out and going for the full Grills experience. Therefore, I'm interested in what the differences are like. I know I can see the benefits listed on the Cunard website, but I'm more interested in the personal perspective - what sort of things stand out and make the experience? Was it worth upgrading to Grills?, and so on.