I had been shopping for something like this for a long time. But all that I could find were low quality expensive and made from mostly MDF. I wanted solid wood. I build most of this project in my living room. There were some unforeseen issues that slowed the process down. But knowing what I know now, I could probably build one pretty quickly.
1st time I would say it is intermediate. But now I would consider it beginner with proper knowledge. I was winging it, combining ideas from several other people's designs.