I didn't really follow any specific plan from Ana to build this project (I've become better at creating my own plans after putting together several of Ana's project plans--I owe Ana big time for getting me started in building!), but I did study her kitchen cabinet plans in order to put this together. Up until now I've done mostly stand-alone projects and this was more like a small kitchen plan than anything I've done before. This took a LOT of time to complete, but it has been a fantastic addition to our home for organization and aesthetic appeal.
It is constructed of plywood and pine faceframes. I used a Kreg Jig to construct most of it, including the drawer and door fronts. The desktop has a 3/4" plywood base with a pine edge-glued panel on top of that with a pine edging.
The estimated time investment was way more than 20 hours! It took every minute of free time for 2.5 months to complete this. But I was working alone, so you can cut that down significantly with help ;)
The link to my blog about this project contains links to all the posts I wrote up during this build.