Hello HHP.....
I was looking at the same coop on Amazon as you are; for me the price is right. I've been looking around for coops on Craig's List and there are a few, but here in Colorado they are pretty darned expensive, plus no one seems to want to deliver. I have no way to get a coop home. I am a 'handy' kind of gal so with the help of my son I can put it together, but yes, the run does appear to be a bit small. I have a fairly large sized backyard but also have a variety of predators (stray cats, hawks, skunks and owls...haven't seen any raccoons....YET) so I want them in an enclosed run.
I am only going to have 3-4 hens, so this size may work. I have been told that although it gets pretty cold here, the chickens will do fine, staying huddled together. You want to watch their combs however as they can be vulnerable to frostbite....(so I've been told).
I do have the good fortune to have a neighbor that lives up on the corner from me (I live just outside the city limits but in a suburban area) and he has 2 hens and a huge tom turkey. His name is Dave and he builds coops!! He has offered to build one for me for a reasonable price and work with me on payments. WHOOT!
So I think that's the route I'm going to go. He's going to build me a "tractor" coop so I can move it if necessary. I have a 17' x 6' dog run (no dog) that I am going to fortify with chicken wire and they can jaunt around in there....I just have to figure out how to join the coop to the run as it is made of chain link fencing.
Good luck!!