Sound — 8
I use my Gibson Explorer with it. It is really good for classic rock and alternative (basically what I play). The amp gives no feedback at all but when you go to Orange or red mode in OD 1 or OD 2 this thing nearly blows up with feedback. I tried everything, even standing in other room but it still didn't help much. When performing I always have to turn the guitar volume down to zero because of feedback it gives, but sometimes I manipulate it like Tom Morello except I use a whammy pedal instead of tremolo bar. When you come close to it with the OD 2 on red channel it just bursts with all kinds of feedback and nearly explodes. Although there are 3 modes for clean channel, the real clean is first mode. It sounds nearly like acoustic. Other two channels sound more like natural crunch. Distortion channel is really versatile because you can make your amp sound like any classic rock song but it's not that distorted on OD channels. Just for experiment I tried to put my amp on OD2 red mode, cranked up gain and volume and still it is not as distorted as my DigiTech Grunge pedal and that's why I still use it with my amp. Overall I'm giving this 8 because it has really clean channel and distortion covers nearly everything from blues to crazy distortion but it gives LOADS OF feedback and that's bad.
Overall Impression — 10
I mainly play alternative like Rage Against The Machine and Soundgarden but I also like classic rock (think AC/DC, Deep Purple) it's perfect for classic rock but you need more distortion if you are playing some heavy alternative stuff. I've been playing for 4 years and I always use my favorite Gibson Explorer but I also have bunch of other guitars. I use Whammy 4, DigiTech Grunge, Crybaby, DD-3 and MXR phase 90. Well to steal it you kinda need a SWAT squad because this baby aint going anywhere without at least 3 people to carry it and still it will be really slow. And I don't know how you loose this but anyways if something happens to it I'm going to buy exact same one! I love the two volume thing and how you can Switch between them when you feel you need a boost. I chose this amp because all the time I was gigging with my MG-30 which really sucks and my band couldnt hear me so I saved up for stack and I got this beast. It has loads of features and that's why this review is long:) I like this amp very much and I give it 10.
Reliability & Durability — 9
This amp is really dependable. It seems to be really heavy (well no duh) but tubes probably wont survive the fall from the van. The amp has never really broken on me, but once or twice right before the show when I was soundchecking it just wouldn't work, but that was explained by my pedalboard later. Read the precaution part of the manual because it gives lots of what not to do's. I'm giving it 9 because it's reliable but it's a tube amp and that means it's sort of more fragile than solid state.
Features — 10
This amp is like Marshall's newest model! It is really versatile with 4 channels (clean, crunch, overdrive 1, overdrive 2). in turn each channel has 3 modes (green, Orange, red) that manipulate the gain green being the lowest gain setting and red the highest one. It comes with awesome 6 way footswitch that is extremely easy to operate. You can program the footswitch so it just takes amp to the stored setting or program the separate bypass Switch as a knob on the amp, for example turn reverb on or off. It has effects loop that comes handy when you want to mix your dry signal with your pedalboard. The amp also has separate reverbs for each channel and two master volumes. I give it a ten because of all the features and easy operation but it is recomended that you take a glimpse at manual beforehand.