MPS-1000 E-Drum Set : how did this pass quality assurance?

Bought this drum set for a few reasons:

1. real size of pads and cymbals, with good reviews on the mesh heads.

2. module functionality - separate EQ per element and BT connectivity.

3. value for money for a flagship product, that is also stunningly beautiful.

upon arrival had a few issues with the kit.

a. cut of the exterior lining of the bass drum was probably done by someone drunk. it should not have passed QA and shipped to a costumer.

b. 40 kits but most of the sounds are truely nothing I will use to play with, and all low frequencies (bass drum, floor etc...) volume sounded very very low.

I had tried different headphones and a RCF ART amplifier, and had to manually reduce other elements (snare, cymbals, hh) to get a decent sound from bass and floor.

3. using it for a year, the module is randomly and sporadically shutting down. sometimes cant even play more than a minute before it switches off for no apparent reason.

cant express my disappointment from this experience.

expected more from a flag ship product.