I recently got the jcm1 combo and think it's a great little amp. My friend has a jcm800 2203 reissue and in comparing them we both actually preferred the jcm1. I have the combo version so I can have a little amp when I want it but it's small enough to use as a head when I want. When you plug in an external speaker it auto disables the internal speaker so it's quick and easy. The speaker is the same as the one in the class 5 and it sounds so much better through a real cab I couldn't help playing around with speaker swaps. The first one I tried is that new 10" greenback and it made a world of difference, they did a great job on that speaker. So anybody with the jcm1 combo you should try the 10" greenback in it as it's a great improvement over the stock speaker.