Looks interesting, but I'm assuming this doesn't work if I like to iron my clothes before storing them. Is that right, or does the rolling not majorly detract from the ironing?

I don't iron my clothes before storing them, so I couldn't tell you, but surely this is an opportunity to practice the virtue of empiricism? Iron a couple of shirts, carefully roll them, leave them for a day or two, and check how the wrinkling compares to your usual method of storage. Then share your results for goodwill and karma.