There are useful sounds in this little multi-fx part, it's complete and I've used it to start my pedal journey, experimenting with pedals and settings and easily discovering ways types of pedals can influence each other depending on their position. Battery powered it lasts a long time, the only gripe is that it didn't come with power unit, which when you buy the supported boss/roland ones will set you back another ~25Euro's. I do like most of my other non-multi-fx pedals better, but still use it on occasion and also for other instruments, which works fine (electronic piano and electric violin).