High vibration: Many users report strong vibrations, which make work more difficult and can reduce line precision.
High defect rate / faulty machines: According to user feedback, around 5% of devices may arrive defective or not function properly.
Poor battery life: Battery issues are a common complaint, which can cause inconvenience during long sessions.
Unstable performance: Frequent problems with inconsistent power delivery or random malfunctions.
Excessive play: Poor build quality sometimes results in parts being too loose.
Breaks easily: The machine tends to break down, especially under intensive use.
Not impact-resistant: Despite the metal body, the machine cannot withstand drops and may quickly fail.
Inefficient performance: Every third hit, or more often, doesn’t penetrate the skin, causing unnecessary trauma.
Lacks power: Insufficient penetration, resulting in minimal pigment retention.