The RC-2, with the simple drum tracks, is really great for solo practice in quantized mode. I don't think it would work in a typical rock band, especially if the band has a drummer. The infinitely small shifts in tempo that a human imparts just don't work for long with a standalone device like the RC-2. But, it immediately became and remains one of my favorite practicing tools. The only time I used the 'auto start' mode, I thought it was too sensitive. (maybe Boss primary included it for dubbing in backing tracks from a computer / cd player) I don't 'trust' it anyhow and it's not necessary when using the drum click because the drums sound (and the LED blinks, along with red on the '1') before the recording begins. I think if you also want a delay effect, you're best served by having a dedicated looper plus a delay (or 2).