I used a concert for an hour and I climb.

The sound passes (especially the bass drum), I have not tested the cymbals, I do not like the hardware that moves a little and a little rotten. Ties toms are not great, not very removable tubes and drums come in to the system. Charley pedal very ...
In fact it is the hardware that bothers me, very cheap.

The value for money is beatable, I have gotten a sonor force 505, (600 euros headliner cymbals that are not so cheaper pans). The hardware really is superior, The sonoritée is almost identical.