Always thought these were a little expensive but now think we'll worth their money. I've now got 2 of these and they have a lot of room inside, all my garden tools are in one and garden furniture in the other and can be locked safely away when not in use. It is easy to assemble alone but two people are recommended to hold things in place. Basic tools are required but nothing special although power drill/driver would speed things up considerably. It is very very important to have it on level ground so make sure the ground where your going to put it /assemble has been levelled. It can be manoeuvred once assembled.
I bought this book to keep me reminded mainly of the BS standards required when quoting. I often now finding myself referring to it as we all forget some little things in our trade now and again. its a Practical guide and thats exactly what it is. I find it as handay as the on site guide for the 17th edition, another book i keep with me on jobs/quotations.