Purchased this with my first kit (also bought from Thomann), and used it to tune all heads after replacing the factory ones. The first 2-3 heads took a bit long, then with some practice it became pretty easy. The kit sounds great, and as novice I could not have achieve this without a drum tuner. Have to admit, I never used another type, but this seems like making do for a long time. If lost, I would re-order.
Pros: does what you need to tune drums and experiment with different tunings. And offers a lot more that I guess pro-s can use.
Cons: Got a few false readings, had to find the way to avoid them. For someone not familiar with drum tuning a bit extra in the manual could have helped, this this is my reason for rating it 4 on quality.
Two more things:
-The cylindrical storage box it comes in is not my thing, but understand if others like the idea.
-If you are a beginner like me, you may want to get the tune-bot app to pick your lug frequencies