The interface for Windows 8 is terrible. It is clunky and unwieldy. Metro is a pain to use and start screen is a stupid idea. The start menu was more effective. It does NOT need to take up the whole screen. It should have been made an option to keep the start menu in Windows 8 by default. There is still a chance they might fix this crap with a service pack. Hopefully if usage rates stay low and people keep complaining they will. One rule of running a good business, the customer is always right.
The start menu works exactly the same way as the start screen if you have a keyboard - you type the first few letters of the program you want to open.
You've still failed to show anything you're able to do more effectively in Windows 7 than in Windows 8.