I've just recieved my print in the post. It was well packed in a poster tube but for some reason they rolled the print up really tightly and filled the space in the tube with packing paper rather than using the full space inside the tube for the print. It's going to take some straightening out.
Paper seems a bit thin but that might be my imagination as I don't keep many prints for myself normally and appears matt rather than gloss but then I don't remember having an option when I ordered. Print quality seems quite good but I didn't use a very good picture to start with, it was heavily cropped to get the bit I wanted in the end so hopefully someone else will be better suited to pass comment on the print quality.
Seems it's a new offer this month, not free but reduced larger posters 60x40cm for £7.99.