I agree with the others to go with the bigger one. A general guideline for space is 4 square feet per bird in the coop (more if no run or no free-range) and 10 square feet per bird in the run. Otherwise you may run into feather-picking or other behavioral problems. Personally I like to be able to walk in and stand in the coop, but many people are happy with that type and the extra space in the run under the coop is appreciated. It's good that it has human-access to the run which makes for easier cleaning. It also appears to have a window for ventilation.
Hardware cloth is great. Chicken wire is great at keeping chickens in but not predators out. I've never put it on the floor of a coop. It would be a predator deterrent, but I'm not sure how comfortable it would be for the birds.
As for the company, I've never used them so cannot comment on the quality of work, but the pictures do look like nicely built coops.