I had already seen this episode of tone talk, just here to enjoy the butthurt and the rustled jimmies Also, metallica has sounded awful live ever since they started using axefx Many bands and musicians can make an AxeFX or Kemper unit work live - but especially for specific high gain sounds, theres a grainy, tinny high end thing going on that you just cannot seem to dial out. If you were a member of a large backing band for a musical, or perhaps a big Springsteen-esque E street band type situation, where theres plenty of places to hide in the mix, or a cover band who needs to cover convincing facsimiles of many many wildly different tones - these are the situations where a digital modeler is going to shine. In a high gain rock or metal world, however, digital modelers are always a massive compromise tonally. Yes, digital people, digital requires less maintenance. Yes, it is probably more convenient. But NO, it does not sound better. And NO, it does not feel like playing a tube amp.