While I have been a fan of the Fiskars Brand of Rotary Cutters for quite some time, I am now even more loyal.
I absolutely LOVE the Fiskars SoftTouch Cutters. They have a squeeze handle that automatically closes when you lay it down. (I always forgot to close the safety cover on the others, luckily I never cut myself!) Plus, these are the easiest to change the blade. The last pair I had for well over 5 years. One morning when going to cut, the mechanism that opens and closes the shield was broken. It took me a while to find another pair online, but I found them at Amazon and ordered another pair immediately.
When the new pair arrived, I noticed that the package said they had a lifetime guarantee on workmanship. So, into a little package they went and were mailed back to the company. It only cost $1.78 for postage. Figured what did I have to lose.
Today my replacement cutter came in the mail. That is excellent customer service. I am very pleased.
I am in no way affiliated with Fiskars, I just love this product.