you need a back up saw to stay happy when one breaks,up front and on top speed controls and on off switch is a plus,low vibration and noise is a plus,a vacumn hook up is nice allen wrench blade tightening tools are a no no. Rear blade tention adjustments are not desirerable.all saws will do the job like a rolls royce and a v.w. will get you to where your going.lights and air blowers are pretty much wothless so an add on of them is nice. Definetly a foot on off switch is in demand.tilt table is nice if you need it,angle your saw forwards so you can see the lines easyer with wood or etc.an adjusable chair that swivels helps,Make sure you can get to all the moveing parts to oil as thats the key to make it last.Easy access to the bottom blade holder is hard to find on low price saws,i can't use a hitachi,sears ,ryobe,ohioforge because of that problem .I need a 4" hole to get my hand in.