I have had a Cobra 4 for a little more than 3 years now. Before that i had a Tippmann Boss for 3 years. These are my only experience with machine sewing. I hated the Tippmann like nothing I have ever known, and I can't say enough good about the Cobra 4. There is a learning curve but it was minor for me, I watched the Chris Andre and Al Bane videos on the Leather Machine website several times before ordering and several times after receiving my machine. With these videos and great customer service from the Leather Machine Co. you should have no problem learning the machine. the Facebook group, Tips and tricks with Cobra class equipment is a great resource. I have never had a regret about buying this machine it is a timesaving workhorse.