Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Excellent after a little tweaking
Review: As the knife comes from the factory it is extremely difficult to use. It is not sharp enough to cut foam thicker than 1", and it is extremely hard to push the blade through thicker foam without crushing, rather than cutting the foam. I purchased a good ceramic rod knife sharpener and sharpened the blade. This was much better but it was still very difficult to cut thick foam because of the friction of the huge blade sliding against the foam being cut. I sprayed the entire surface of the blade with silicone lubricant and this made an almost magical difference. It was trivial to make very smooth cuts in foam 3" to 4" thick.For some reason the Amazon web page is not letting me set my star rating but I would give it a 5 (if Amazon would let me).
