Instruct: Classify a given review into positive or negative sentiment.
Query: Poor Quality Knife

I bought this knife in May of 2007. The blade lock on this knife has failed twice in less than a year. This is very dangerous as the blade could close on your fingers when in use as the lock mechanism fails unexpectedly.SOG has a lifetime warranty. They do respond quickly with repairs, but something is clearly wrong with the design of this knife. I did write them about the problem so I might amend this review on a later date once I find out what action (other than another repair) that SOG takes.It is light and an attractive knife but in addition to the blade lock failure I mention above, the "assist open" mechanism requires too much pressure to open the blade. I own other assist open knives from other manufacturers and have never had issues like I have had with this knife.The Kershaw Ken Onion knife I own is far superior. Until they get the design kinks worked out of this knife, look elsewhere.