Unfortunately missed the Keter Marvel deal on Amazon but having been looking for an outdoor storage for kids toys and some garden furniture cushions.
Came across this and just picked up, seems pretty study but know its less top capacity that some of the more expensive Keter boxes. Usual blurb below from Wickes website
Keeping your patio or deck neat and tidy is a breeze with the Emily Storage Box. Its 277L/73G capacity, large enough to hold a cushions, toys, gardening supplies, and more. It can easily be assembled within minutes without any special tools, yet its sturdy construction lets you place 80kg on top of the box. Built-in handles and wheels make it easy to move around as needed, and a lockable lid ensures your stuff is secure. A new mesh design adds a stylish touch wherever you place it. Made of resin for many years of maintenance-free use, Emily is storage made simple.