Not worst beer ever. I will drink Redbridge, some New Grist beers, Green's etc. When my homebrew is out, or if I am at an establishment that has GF beer, I will have one of those and not complain.
My experience is that GF homebrew is much better than anything you can buy so there is no reason to clone ANYTHING on the market. Just brew something. Brewer's best has a good kit, or just look around in this forum.