I just tested the drumkit once in concert. I have compared the acoustic sound with microphones.
So, in power, it's going, it's okay, but not more than my drums (Mapex M-birch) and the bass drum, like, no more powerful than mine (but more powerful than a Pearl or export session studio). More importantly, many serious, that's fine, but once sound system, the definition is not too low and too invasive. After, well, it was accentuated by the skin (Evans G2 coated) and I used a 10-tom "in place of a tom 12" usually (that is, the serious ...), so , drumkit driven really rock.
Price / quality ratio right, but personal, I have not found it was of incredible quality (although very low) and I preferred to less (€ 900) and have a drumkit of equivalent quality but with accessories. Or, to put twice as much for any real quality.
But, hey, I only tested once (actually twice, I had already tested in a studio again).