No that amp isn't cheap. It's roundabout 2,200 EUR the head without Reverb. Reverb is 380 EUR and is switchable and amount can be adjusted by channel. Combo is another few hundred bucks.
But this might be the last amp of my life, so worth the money.
By the way, there are amps that easily cost twice its price. There are even people that pay that kind of money for a night in a hotel :D
The gain is around 3/4 on the dirty channel. It's not a high gain/metal amp, but it can do well RATM or Early Metallica well.
Basically Ch1 gives you a most awesome super responsive and gnarly Blackface-ish tone, Ch2 gives you the best of Marshall with a 60s voice but more gain and body.
None of the other amps I tested had close as much tone. I used to dig my Engl Screamer (and still do as it plays so easy) but if you A/B the Engl and the Bogner, it's like the Engl is in a different room, so much less present and authoritative it sounds.
You do get more features from other manufacturers at this price tag (e.g. Diezel VH4 is just 500 EUR more than the Shiva Reverb model), but you won't get more tone. And then also the more elements you have on an amp, the more you need to manage, which can be annoying esp. live ...