Cool as a stand-alone effect, but shines when combined with other effects

Easy to use, and provides a very cool effect with my Yamaha Electric Violin.

With it activated, the effect only works while the pedal is depressed

Vibrato is my favorite guitar effect EVER

As I say the UV300 effect sounds good, BUT there is a low frequency random noise in the background - a sort of crackly grumbling sound, that is present whenever the Mode switch is not set to bypass

The rise knob seems to act as a reverse level control, or at least turning it up weakens the effect (which I guess is good, I might swap around the leads)

Offers a pretty good vibrato effect for 1/10th of the price of the beloved Boss unit

Great sounding effect but cheap building

Great vibrato effect

Loved the true vibrato effect with my Yamaha YEV104 electric violin while it lasted.