Having used plate joiners in the past..I found the Dewalt to perform very well.  The adjustments are straight forward and the streamline handle make it easy to use on all materials.  The handle is very important, as some other designs have a bulky handle that may be to far offset from the plane of the blade.  With the Dewalt you can hold the outside area of the fence steadyand easily start  the motor and push it in with the other hand.  I find the #20 plates/biscuits as my standby, when attaching 3/4" materials to 3/4" plywood (face-frames to cabinet box)  The #10 when less of a bit is needed and #0 for thin materials....I recommend this tool....so far I have been very happy with all of the Dewalt products I've purchased and used...