if you are like me you overthink on buying something used. Whether it's from ebay amazon Facebook market or any other goods stores. I too looked into the amp lab and let me tell you i loved what i saw. Being a bass head cancer patient and slowly getting back to healthy i wanted to make sure i did not get burned in the process let me tell you they did not let me down. The customer service is excellent they took the time to respond to my every concer and question that is so hard to find now in days. Shipping was great such an easy transaction and this thing was packaged with such care and consideration that it amazes me how much time was put in the packaging alone. with all this said a solid 5 star rating for sure if you are indecisive to pull the trigger i hope this helps you choose from now on i am definitely taking my business to the amp lab!