Yes, I have seen the Crush group live in the UK. They were extremely good, especially the drummer and the bass player. They had a wonderful live sound. Loud enough to be heard but quiet enough to be powerful. They rely on the power of the performance, not the power of the amplifiers.
The drummer was idiosyncratic in style but very sympathetic in his playing and singing.
The bass player was authoritative and melodic with a deep deep sinusoidal tone. The bass and drums mesh as one instrument. I couldn’t pick out the kick most of the time because the bass line and kick drum patterns were so co-ordinate. Each created acres of space for each other to shine in but at the same time managing to sound as a huge great oneness. It’s a level of empathy that is not often witnessed except in the greats (or digitally created artificial tracks). It made a sound as hypnotic and satisfying as only the best hip-hop, Beethoven symphony or Miles Davis can usually create.
The rhythm guitar player/ singer was OK.