This unit is fantastic. Multiple amp models, multiple effects, easy to use and tweak, built in looper and drums and built in tuner. To really appreciate all of the functions, you need to get the FSX3 footswitch that will allow you to scroll through the presets and work the looper. You can then set the main unit footswitches to activate effects just like individual stompboxes. The amp models are fantastic. From acoustic to metal (the Randall RG100 is my favorite). The software to update is very intuitive and fun to use. At one point I thought about selling for something different, bought a bunch of gain and modulation pedals but could not get the quality and variety of sounds. Ended up returning them all. The only outside pedal that I use are a boost to drive some of the gain channels harder when needed, an ambient reverb pedal and a wah pedal ( not crazy about the wah sounds).