I bought two of these to finish building my house.  My thoughts were to keep one at a particular angle and the other at an opposite angle so I could make cuts quickly and eliminate setup between cuts.  In theory it seems logical.  In use, it wasn't practical because the need for minor adjustments.  I installed my own trim which included baseboard and door casings, all custom milled.  Turns out, very few corners were "square" so I ended up having to adjust each and every piece to fit.  This meant that I needed to cut slightly off 90 degrees and perhaps a bit of a toe in or toe out (don't know what you would call that), but not just straight!  So it meant that I needed to adjust slightly with almost every cut. Adjusting is simple and it locks down solidly.