I use this on my pedalboard, for playing with headphones and playing along with music (aux in), this could only be better if it was a pedal with the controlknobs on top.
I would recommend this to everyone who wants to play bass on a budget, without rehearsalspace, or not enough room to store heads/cabinets/amps. This will give much more pleasure than you imagine now, you can play with your favorite music 24/7, without annoying anyone. get a decent headphone and an aux cable, hook up your smartphone and play along.