Great amplifier, especially for the money. First of all it is an amazing pedal platform amp with nice bass and mid response. Everything I've run into it sounds really good, and it's near breakup gain is gain on 10 and boost off. It is most like a JTM45, it has a lot more bass and more active tone controls than later Marshall amplifiers like the JCM900 I previously owned. It doesn't overdrive too much on its own, but if you push it with a booster, it does pretty well. It is loud, even in the low power setting, and to really get it to drive, you need to push the power amp. It also doesn't seem to have as much drive as I remember from trying a 50 watt version, but that may have been the guitar more than the amp. Great value, I would recommend it to anyone looking for what I just described. If you want something that sounds like a Super Lead, Super Bass, or JCM800, this is not the right thing to buy. If you want a great pedal platform or early Marshall sound, you can't beat it.