It sounds very lo-fi, noisy, irregular. When you turn it off and leave the tape loaded, the tape bends in proximity of the capstan, and this turns into a periodic pitch fall during echo playback; plus, it gets hot and the background hum gets worse in time... you should turn it off every now and then; the tape is never completely erased, and the capstan motor flutters... and it gets worse if you touch it while it's spinning; heads tend to get dirty very soon, infact you should clean them often. This is true for the actual hardware unit, and for the digital simulation as well!It's definitely worth a try, you might like it. It's a simple little tool that actually has a history - for example Elvis Presley’s electric guitar player liked it so much. If you want to understand the whole idea behind getting a tape echo (mp3 example of tape delay (not Copicat) below) - read "Tape Delay In Your DAW" (Sound On Sound) article.