Share 'New mixer? Something else?'

I'm not thrilled with my current mixer and might replace it. Recommendations? Stick with hardware or shift more towards working inside the pc? (I'm a little more partial to hardware - but I'm open to suggestion...) I have a Mackie 1604 right now that's not really clean enough. I'm not sure what the deal with it is - it's just not quite right. The best part about the 1604 is the 6 aux sends (4 si…