I love the oven doors
When I watched Series 5 last year on PBS, I was mesmerized by the retractable oven doors! I've never seen them here in the US (but maybe they exist somewhere out of my price range!) but it's such a great idea. An open oven door takes up about 3' of space and it can be difficult to reach over and around it. All ovens should have this feature (in my opinion).