I purchased 2 of these, one for my girlfriend. To draw the thing back took incredible strength (my girlfriend would not be able to do so). I was ready to return them, but I called the company to ask if it can be lubricated, and the co. said yes, absolutely. So I liberally lubricated the shaft and now it works well. So note to new users: lubricate it.
Rating: [4 of 5 Stars!]