Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Incredible waste of money

I purchased a Senco Duraspin screw gun and cut out saw several weeks ago and was rewarded with the biggest disapointment of my life. The screw gun is an absolute waste of money. Right from the box the gun jammed on a regular basis...like one in five screws. There is no reverse so one has to pull the tape through in order to free up the mechanism. You can't do that without wasting other screws and they are expensive! The gun will not operate unless it is aligned at right angles to your work...and I mean it needs to be almost perfect. It is also under powered. You would need three batteries to use the gun in concert with the cutout saw as the batteries don't stay charged long at all. If you are looking for a drywall gun..go electric for less than half the money and get a tool you can work with.