I have been using a Wixey digital protractor for many years with great results. I recently got this DC107 and it is just as good as my Wixey. I also like the additional laser capabilities; This makes it easy to spot a flat (or sloping) line on the wall. The magnetic base makes it easy to attach to objects like a table saw blade. Very nice, easy to use and accurate. Also included is a nylon sheath.