I have 3 Olfas BUT I saw the Martinelli "dance" at a Sewing expo and used one there. I will purchase that one next - It felt great in my hand and easy to use. Much nicer than my Olfas.

Fiskar just like Bev.has

Ditto! The 45mm is the one to start with, but you may also want a very small one for detail work.

I have Olfa and Fiskars, - but I bought a Marteli ergonomic at a show early in the year.
Since I developed carpal tunnel in June, the has been the best foresight I have ever had. I may be having trouble prepping food in the kitchen, but still have no trouble using this cutter.

Gingher---son and daughter-in-law gave me one for Christmas---toally awesome---daughter-in-law is a many award winning quilter---and really great

At a quilt class recently, our instructor said she gets double duty out of her rotary cutter blades by flipping them over. Her husband is a woodworker and said that is what he does with certain saw blades. I have tried it and you do get some extra "life"out of them.

Have both Olfa and Fiskars, 45 mm and 60 mm. I love the Fiskars for the button-push safety and it fits nicely in my hand.

Learned about the bigger cutters last year and that's my favorite now! Find it easier to cut with the bigger ones - don't have to push so hard.

Olfa ergo here as well. 60mm for cutting lots of layers, 45mm for squaring up and 28mm for teenie tiny stuff. have used the friska but after a while my wrist and hand give up but with the ergo can keep going for much longer and cutting out is no longer such a pain.

JoAnns had a sale on notions. I bought a blade, got one free. Not bad!

I love my fiskars(?I think) that you squeeze to use. I have been using an olfa and keep forgetting to close it. If I am cutting curves, I use my small olfa(straight one).