These are good. Although the stitching on the inside pockets and the plastic handle don't last too long. And the inside pockets aren't that deep.
I agree about £17 at Costco Southampton yestersa
I have one of these and they're pretty good quality, I do prefer this though for it's light-weight, easier to carry and stackability. https://www.amazon.co.uk/gp/product/B00CE5DA56/ref=ox_sc_sfl_title_1?ie=UTF8&psc=1&smid=A3P5ROKL5A1OLE
If people stopped posting Screwfix deals, nobody would have an issue shutting their toolbox.
Got one of these when on offer at amazon. Love it. So much easier than a rigid box. Loads of pockets to sort tools and so much more flex when trying to get the thing shut. Would heartily recommend.