Sound — 8
The sound is really quite good on this amp. I mainly run two guitars through it, an Ibanez SAS36QM and an Epiphone Les Paul Custom. Both sound great. I don't get much feedback despite often practising quite close to the amp. I also do not get much buzz either. I would say the easiest sound to get out of this amp is a 'blues' kind of sound but with the right settings, you can play pretty much anything through it. The clean channel does not become too distorted when you crank up the volume but the distortion is pretty mild so for playing heavier rock/metal, you may also want to invest in a pedal.
Overall Impression — 6
I play rock and metal and although this amp probably wouldn't be my first choice for these styles, it would be up there. I have been playing for 8 years and I also have a Line 6 Spider IV 150 watt. The Marshall does not compare to the Line 6 but there is a severe difference in price between the two. If this amp were stolen/lost I would probably look to buy a different amp. The falling through jack input is a pain but overall it is not a bad amp however I would prefer it to have more effects (not something you often get on a Marshall).
Reliability & Durability — 5
So, this is the point that lets the entire amp down for me. I cannot depend soly on this amp and if I were to play it at a gig, I would definitely feel the need for a backup. The input jack falls through constantly. Which wouldn't matter too much but it literally takes forever to fix. Once you have fixed it again, you have about 3 hours max before it decides to fall through again. In terms of wiring, I haven't had a problem and I guess it may be a one off problem but just something to bare in mind.
Features — 7
I was pleasantly surprised with the features on this amp. It is 70W and I think made in 2009. It has a clean and crunch channel, plus 2 overdrive channels. There is a 3 band EQ (bass, mid, treble), gain, master volume, channel volume, FX (chorus, phaser, flanger and delay). The effects aren't the best so I would suggest adding pedals to it if you need any. I play metal and rock and to be honest the distortion isn't too bad although not particularly 'heavy'. There is a headphone jack and an MP3 jack, the MP3 jack being quite useful for playing along to songs or just listening to music in general. There is also a tuner and a store function where you can select the default effects added to each channel.Lastly there is a foot controller option.