Sandbox3 is a large, ultra modern coworking space that requires you to sign up with your personal ID and their app. The app is free as is the sign up. You get issued a card that gives you free unlimited 24/7 access to their facilities. When you want to order coffee and food from their cafe, or a meeting room to use, you just pay through the app. The one problem found here is that some people use the place as an their daily office, making loud phone calls, and not respecting other people's spaces.