I think that I've tried every rotary cutter made. I love to cut and I'm always the cutter when we work in groups. I'd recommend the Olfa 45mm cutter to start, the one with the slightly curved handle. It fits in your hand well and can be used for right or left handers. Get someone who is good at cutting to demonstrate proper technique because it does make a difference on how you hold it (accuracy and ease of cutting). Buy extra blades as a dull blade can cut you and will not cut your fabric cleanly or accurately. I'm really good with scissors but I'm even better and much faster with a rotary cutter.