palram store and grow greenhouse/shed combined

Hello. After many years of longing I am now in a position to have a greenhouse having acquired a little extra land at the back of my garden. I have a space of about 12ft in width which goes across the garden and 6ft in depth. I would like to have a greenhouse and shed combined but they are quite pricey. I have seen the Palram store and  grow at a very reasonable price but am struggling to find many reviews for it. I have found a few reviews on some American websites but none on English ones. Does anyone know of this greenhouse/shed combo and what do you think? I'm not sure how to get the link on here but it is a website called World Stores. Thank you in advance.