If you want the look I have done then you need to sand the top,of the unit. I used a mini Bosch sander which was great. It took me 1.5 hours to sand, always go with the grain of the wood. If you circle you will get scratches. Pine is really soft and dead easy to sand out bumps and knocks. Be careful though not to over sand!
Bosch Variable Speed Random Orbital Sander/Polisher Kit with Carrying Hard Case
Sanding is an essential part of the preparation required for virtually every type of surface treatment. Find out which is the right Bosch sander for your application, in combination with selecting the correct abrasive.
Bosch 5 inch Palm-Grip Random Orbit Sander When you need a smooth finish on your woodworking projects, the Bosch 5 inch Palm-Grip Random Orbit Sander ROS10 is the best machine for the job. This awesome woodworking tool has an ergonomic design that fits comfortably in your hand, making any sanding job much easier to handle. With its excellent features such as a smooth-orbital action and a twist-off filtered dust canister, this random orbital sander offers an all-around sanding performance.