I've had mine for several years now. I don't really give it much thought.  It always does what I ask it to. I love not having nail holes in my face  frames. Not a lick of trouble. I don't have the problem  of clogging. If  I'm inside , I use a shop vac. If I'm outside , I use the dust chute and  the ground. I don't point it at my person, I point it away. Nor do I have  the problem of out of square cuts. Even if they were it wouldn't be a  problem.  The slots are wider than the biscuits anyway. If you properly  clamp your work the joint will be straight even if your cuts are off. It's  amazing how forgiving these little football shaped pieces of smashed wood  really are. The glue causes the biscuit to swell and fill the voids. I  really like biscuits. They are pretty strong if you use common sense. I  have large pieces of furniture made exclusively with biscuits(no mortise  and tenons and no screws or nails) that are several years old and have been  moved twice to different locations with NO failures of any joints. The  Porter Cable looked inviting to me but it's not really any better from my  experience with it. I've never used a lamello. I'm sure I would dump my  Dewalt in its favor if I did but I'm very happy with this one that is sooo  much cheaper.