This was my first foray into the mid tier priced wireless machines. For the price, the build quality is nice. I am concerned with how some of the tolerances will age over time. The machine is back heavy, likely due to the direct drive adjustability it has. On the adjustability of stroke, you cannot adjust mid tattoo, which is fine. This is one you set for a specific stroke and leave it for said piece. It is versatile, but obviously lacks the ability to adjust on the fly. My biggest gripe is the balance of the machine. Due to it's length, it is back heavy. The motor has a decent hit to it. Not in line with some of the top end packer machines, but enough to run bigher RS for lining with the 5.0mm setting.
If you are early in your career and want a wireless machine that has a wide range of stroke lengths to choose from and are on a budget. I would recommend this machine. I personally will have it as a back up if one of my machines at a specific stroke stops working.