If this thing does what's advertised, I could see it helping a lot of people with tuning. That's obvious by the amount of interest in it, I believe. It's a tool. Tools can help. Having an ear for tuning is great, but not everyone has one. People struggle. Others don't. But saying something is worthless because you don't struggle with doing what it does is a pretty empty argument, imo.
Not to mention it's condescending and very unhelpful for those trying to learn tuning. It's art form, no one disagrees with that. And as such, there are people who can paint photo-realistic paintings freehand and those who can barely draw a stick figure with a ruler. Most are somewhere in between and some of us need to use tracing paper, templates, etc.
I can see advantages in it. I get handed some pretty shady rental kits, and often have to work with them in different environments [sweaty holes, outdoor shows, basement clubs, etc.]. To be able to even shave 5 minutes off my soundchecking time, which is already crammed with other guys making noise, if I can have a little help from a machine to find what I'm looking for....seems like a good idea to me. If it can do that, I'm in.
Also, I'd love to be able to dial in my saved sweet spot for every drum on my two totally different sounding/sized/headed kits. If it can do that, I'm in.
Yes, these are some of the advantages of the tune-bot. We all know it's not for turning the drums into a melodic instrument capable of playing chords and scales. Rather, it's a tool to help you know what that sound is that you liked and get you there much faster and more consistently. It's also very helpful in understanding the relationship between the drums, which for some is even harder to get right than tuning an individual drum.
And, here's another important use that even tuning prodigies can use it for: communicating to others how you achieved that great sound. Most tuning tutorials out there are just some person on a video tapping the damn thing saying into the camera, "this is a bad sound" or "see, that's a good sound, you just have to develop an ear for it." Very unhelpful communication, at least for me and how I learn.
For me, I don't just want get a good sound, I want to know why it's good and how to get back there consistently. Or, when I hear a good sound on someone else's kit, I want exact information on it so I can try it out on my kit (which I know, may or may not work on my kit which has different drums).
I'll bet if I took a tune-bot to some of those drums that others tune by ear, I'd find that most of those drummers have pretty whacky tunings going on, and I'll also bet that if I come back in a week I'd get very different readings. That's not to say that there aren't some out there with a very good ear (like my painting analogy above), but I also think there are probably those that are more confident than they ought to be. I've watched plenty of tuning tutorials where the person claimed they got a good sound and it sounded like crap to me (yes, I know it's about personal taste, but I'm talking really crappy here).
I also play bass [and use a TU-2 to save time]. The drummer in my band could really use the Tune Bot, I believe. That way I won't have to tune his drums all the time.
I'm intrigued.
I used to play acoustic guitar, and I most definitely used an electronic tuner to get the E string (then I could tune the rest of the strings off of that). I don't hear in perfect pitch, and I even struggle a bit with relative pitch.
I have a tune-bot, and I highly recommend it. I'm much quicker and more confident of my drum sound now. And I can tell people who complement that sound exactly why it's good and help other drummers learn to do the same using the language of the tune-bot. It's as much a communication tool as it is a tuning tool.