We have one similar. I feel your pain Ryan. Erin and I worked together on it. Took most of one day and some finishing touches the next day. We surprised ourselves. Generally we work well together cleaning the house and such. However if we are mulching it ends up being "I" am mulching with the kids making a mess and Erin sitting in the porch swing supervising. I couldn't believe we worked together on our swingset and didn't kill each other. She is awesome but not really skilled in this area. I tend to be more of a perfectionist on something like this and she just wants to get it done.
Yours looks great! The kids will get many years of enjoyment out of it. Look forward to meeting up tomorrow.