I have an HD500X and use it for church service. It is a great machine, old technology or not. There are a multitude of inputs, outputs, midi, etc. and the sounds are absolutely fantastic. There isn’t anything it lacks for what I use it for, except maybe an ambient reverb, but I just downloaded an ambient patch that somebody created and it sounds exceptional. I got it on sale at Guitar center for $399.00. It does split channels and I have never ran into a DSP limit yet. Now, just due to size and wanting something small to take to worship services once in a while I am testing out a Stomp HX in a couple of days. It does look like a great device and you can get one for 15% off at Guitar center or around $500. You may need a foot pedal though with it, and like somebody said above, it is new technology. However, the POD 500X is not really very old and the HD amps sounds awesome. It also has a much more analog sound than software like BIAS fx, close to actual pedals. If you need really heavy duty, volume/wha pedal (or whatever function you assign it to), thee POD being all self contained is an excellent choice.