Not as good as it seems

I purchased this speaker. After testing I was not impressed as I should be, after reading all this review. Bluetooth works awsome. Probably best sound I ever heard from bluetooth speaker. But live performance (vocal and guitar) was average. I try also piano and vocal - it is even less than average. I try to put as FOH - not nearly good enough. I was soo disappointet, that I return product. Thanks Thomann!