Hello,
First of all I would like to mention that I like metal music. This amp doesn't fit to this style. But I haven't been looking for high gaine amp, because I've already got my Engl. So why did I choose this amp? The rison in it's lead channel that sounds great in the mix.
Pros: 1) Awasome clean channel, 2) AUX in, 3) Marshall distinctive lead sound for solo, 4) Good price for completely tube amp, 5) reverb, 6) Marshall design, 7) 10W mode
Cons: 1) It doesn't have modern high gain, 2) it's very loud even in 10W mode
I think DSL20 fits great for Blues and Rock with AC/DC style riffs. And of course it's depends on guitar pickups in your guitar.
I like the sound of this amp with more mids (at 3 o`clock) and less treble (at 9 o`clock) and tone shift swiched ON. With this settings it sounds more metal for me.
Thanx for reading. Be safe and stay in tune!