Broadband Boost is designed to guarantee a fast and reliable connection with daily checks on your line, free engineer visits to fix problems and a Sky Broadband Buddy app that allows you to control family Internet usage and screen time. What’s more, it now includes a Wi-Fi guarantee, where Sky promises you at least 3Mbit/sec WiFi in every room. If you don’t get it, then Sky will send a Sky Broadband Booster or an engineer to fix your coverage. If that fails, you’ll get your money back. It’s a nice idea, but worth remembering that 3Mbit/sec minimum speed. 3Mbit/sec isn’t actually all that useful, especially if you’re hoping to stream Netflix or download games from online stores.