Thank you - good to hear from a current owner! I read a lot of reviews on them before buying and they had the best reviews around for a well-built coop within my price range. Can I ask if you purchased the winterized panels - as you are in NE WA? I'm still getting them as will help in keeping out snow and wind but just curious. Also - did you have any concerns with not having a ladder? That was the first thing I noticed but when I called they said that it's more natural for chickens to want to fly up to roost. Can easily add ladder but that would take up floor space. Do you do anything for the condensation?
My coop was a lot, lot smaller (it was marketed as a starter model) and oddly they got the # of birds right for the starter model. I ended up with one more bird than it could hold so I modified it by removing the nest box to increase roost space, and then adding a nest box elsewhere, so quite possibly you could go that route for roosting modification (though IMO you'd still need a larger run to accommodate more than 6 birds).
Yes I purchased their winterizing panels. Actually I bought a half set (mine had the option of 2 different sets) which worked out fine as I did not want to cover up all the mesh as you still need some open space for ventilation. My climate is milder than yours though we still get some snow. With this particular build, I'd say cover up the lower parts and leave anything above halfway up open (so like top half of door, assuming that comes in 2 pieces).
I added a "ladder" (just a branch propped at a diagonal) when my chicks were young but they quickly learned to fly up and down to roost. As it was a smaller unit, my roost bar was lower than the one you'll have.
The condensation I just had to live with. My current coop also has a metal roof but properly has plywood sheathing under the metal. You could possibly try adding plywood specifically in the areas above the roost and nests, as you definitely don't want dripping in those areas. The curved center roof would be much harder to correct but at least it's not directly above sleeping birds.
Also that waterer is going to freeze, even if you add a heating element, as it uses vertical nipples (so water inside is liquid, but nipples are frozen as they're external). Mine froze daily in the mornings and I had to manually thaw out the nipple. So in winter plan on having a different watering source.