Mario, I built the bench in Pauls DVD over a long weekend, 3 days. Thats a full three days. It goes pretty quick once you get started, the longest bit was chopping the mortises and fitting the tenons in the legs.
i built mine over about a month of intermittent weekends and evening hours. It goes together pretty quickly once you start. Then once you fit a vise, there will be nothing holding back your woodworking! enjoy it, you’ll have a lot of fun and learn so much.