I have the M2, it got rave reviews back when but I'm unimpressed. Sounds clinical, not bad but something is missing. I use the Tascam Model 12 for my recordings, maybe not as super clean but a warm and musical sound that is just right in every way. And of course it is much more versatile as it is also a digital mixer. The Tascam has useless headphone out though, very low quality, thankfully it sounds pristine on the XLR sub out using an external headphone amp.