I have a BNX3. Great tool for songwriting, the limitation is I find it kinda complex to work with. I've made friends with it and learned how to adjust and store parameters for my effects and eq settings. The recorder is pretty easy to use. All the banks and modes of the thing can get pretty darn intimidating. The manual is also not that easy to follow either, at least for me. I worked with a guitar player who had one and knew his way around it pretty well, but he told me it took him a year to even start to understand it. I use mine live all the time because I've saved distortion and chorus sounds I like, but the key to using it for me is to know how to hit bypass mode if it's not sounding right. It's pretty fun to work with, just time consuming.