I had a good time building this, my 3 year old even helped with drilling some of the pocket holes.
Project total was some where around $350 including lumber, master kreg jig kit, extra kreg clamp, finishing supplies, extra screws. That's kind of a high number, but I really only had a miter saw, orbital sander and a paint brush before I started this, so I'm happy with the number.
I have a lot of time in the chair if you count finishing it, but time to build was probably around 10 hrs, Total time is upwards of 40 hrs, but I didn't really pay a lot of attention.
I used S4S pine from Home Depot to keep the cost down as much as possible.