I have tried all the brands of blades there are (including from Harbor Freight), even bought resharpened from a local quilt shop for $3.00 a piece (cheap enough to try). My blades of choice are Olfa and Martelli, they last way longer than anything else that I tested. Yes they are a little more expensive but when you get a lot longer and better cuts, to me it's worth it. I cut something every day. The shop I work in, the owner uses Olfa blades as she gets many more cuts per blade than other brands. JMHO