in a word, WOW! for 43 years, I've been a sucker! lol. I hated tuning my drums. I even hired a friend to tune my current set the last time I put new heads on. I had a couple of upcoming shows. I wanted new heads. and again, I hate tuning drums, so after looking at several tuners, I chose the tune-bot gig. I decided to learn how to use it with my current heads. well, I may hate it, but apparently i'm pretty good at tuning by ear, the tune-bot clips onto the rim of your drum. tap the drum by the lugs. tune-bot gives you the frequency of each lug. it's visual, no guess work required. furthermore, the tune-bot webpage offers several resources to aid you in finding your perfect sound. this is probably THE best accessory I've ever purchased for my drums! I recommend it to my students and I will never be without one as long as i'm playing. jon _ "leadfoot", "Picasso trigger", "ugly amreicans"