I own Guitar Rig, Amplitube (free version) and bx_rockrack. The latter is also a 10. I've only demoed Metal Amp Room but was impressed. I don't even play or care for Metal. It's a case of quality over quantity. Quality always wins with me. Even as an owner of the impressive bx_rockrack I would also like to own Metal Amp Room. You don't have to be a Metal lover to enjoy this product. Also Softubes Acoustic Feedback is a great addition to any in the box guitar rig.