I bought this new when it was first released, but I ended up getting used to a regular Cry Baby, so I hardly used it, only trying it out once in a practice studio. It's been sitting in its box ever since. The chrome has aged and shows some dulling, and the box has peeling and other signs of wear, but I still have the original manual. It seems I didn't use it much, as the input jack is stiff, and the gain knob is also stiff. From what I've briefly researched, it's the predecessor to the 535Q and was a short-lived model.