This pattern is a bit shelly, but I like the outlines formed by the front posts. This square also turned out very straight, and I can only guess it's because I've finally been doing 3 ch = dc at the beginning of a row. Sometimes it works and sometimes it's too much. I haven't figured out when 2 chains or 3 chains are better yet, though.
I used Red Heart Super Saver Turqua yarn with an H hook.