I run mine daily, sometimes 10 hours but on average about 6 - 8. The plastic insert at the blade sits low, it will catch the corner of wood on short pieecs. The fix, tape a playing card over the hole. The blade holder screws that came with the saw, were breaking blades very fast. Took them out looked at hte, tried to file them flat, metal was too soft to keep blades after several blade changes. Fix, went to home depot, purchased some 6mm allen head bolts, filed and sanded the bottoms, no more blades breaking because of the bolts. The blower nozzle wears out fairly fast and drops out of range to do any good. Some electrical tape helped this. I use this saw contantly and will say for the price it is a great saw. for a beginner. I had the 16" version that lasted me 4 years or so. Minimal vibration, pretty quiet. I feed my blades from the bottom and now use a long allen key to set the bolts. Not an issue. I would recomend this saw for someone learning or as a second saw in a heart beat. I'm just saving up for a more heavy use saw like Ex-21 or the like.