I've used my Minirig in the bluegrass session at the Somerville Arms in Leamington two or three times now. By it's nature, this session requires solos from participants. Without the amp, any solo I play is almost inaudible halfway down the room. By using the amp, what I play becomes a proper solo, and I've received nothing but positive feedback from fellow musicians and non-participating audience alike. The trick is of course to BACK OFF when others are playing so as not to drown everyone else. I'd recommend this approach to melodeon/piano accordion/guitar/banjo/bodhran players who don't actually need to use amps in sessions but play as if they'd love to.