Make sure you know what predators you're up against. I also started with a prefab because I almost completely lack carpentry skills and have had it most of a year now. I still think it's better than anything I would have been able to built myself at the time. I had to make some modifications to it right away when I assembled it though: hardware cloth over the entire top before putting the roof on (proof against weasels/rats), 2ft predator skirt around the outside (stop digging from foxes, etc.), extra latches on all doors that either had key locks built-in or allowed padlocks (racoons), and washers+screws to reinforce hardware cloth over a window where it was just stapled to stop it being pushed in from outside. Later I also ran into some issues with needing to add some extra bits of wood to block out rain and had to replace sliding doors that would stick, but that was mostly to do with the particular model of prefab I had. Anyway, depending on where you live and what daytime and nocturnal predators are in your area, you might need to make some similar additions to it before it's safe to have your chickens out in the coop/run unsupervised.I’m getting a prefab coop to start. It’s got an attached run and should be plenty is space for 4 birds until we’re comfortable letting them free range in our yard while we’re outside.