I've been playing a Savage since 95-96 and I have used it for all kinds of sounds.
The areas where it is not as good are super clean (when you compare it to an old Fender amp, for example) and high gain lead (when you compare it to a Bogner Extasy, for example). The clean doesn't sound as "glassy" to me and the lead sounds fizzier/thinner and not as round as on other, more rock oriented amps.
The 2 FX outs come in very handy and the midi-switchability via footboard is really cool, too (you need an extra midi-interface for it, which is made by ENGL). My live setup in the 90s looked like this:
Guitar > wireless > splitter
Splitter 1 into ENGL Savage
> FX Out 1 (clean ch.) into Compressor > into Rocktron Intellifex for modulation effects > back to amp > to Cab 1 > miced with 2 mics
> FX Out 2 (lead ch.) into Lexicon PCM 80 for delays etc > back to amp > to Cab 2 > miced with 3 mics
Splitter 2 into SansAmp PSA1 > going directly into the board
All of this was completely switchable through my midi footswitch (I still have this ugly pink ART switch

) so I could go from a high gain rhythm with no FX, to a clean sound with a phaser, to a lead sound with a delay just by switching on my footboard. The SansAmp would also change its sounds to complement it. Very easy once it was all set up properly!
You have to be aware, though, that it doesn't have 4 *real* channels. You can switch between 4 channels, but the EQ and gain-settings are divided between clean & crunch 1 and crunch 2 & lead. I have never cared about this much, because I only used clean and lead channels live. If I wanted crunch, I just rolled back my volume on the guitar, as I feel the lead rolled back gives you a better crunch sound then the crunch 2 channel.
You get 2 master volumes, which is great again, because you can set the clean master much louder than the lead master and never have to worry about level differences. Same for two presence knobs.
As you see from the fact that I've had the amp for more than 12 years, I've been very happy with it.