I was intrigued by this pedal when I saw a YouTube video about this at the NAMM-show. Poweramp and cab sim/IR plus a doubler, a ton of mono/stereo I/O options, FX-loop galore and eminently usable with headphones.
It is a bit of a peculiar combination of features, but as an "amp substitute" at the end of the FX-chain on your pedalboard, it sounds good: it handles pedals well, the switchable loop at the end of the chain is a nifty touch and the speaker/cab models the pedal has on offer are on point.
Now; the pedal, 9V and reasonable in terms of power consumption, is quite bulky and some of the features/buttons are somewhat hidden under the hood. A good read of the manual is advisable to unlock the full potential.
Moreover, if I were to shoot this thing out against the Strymon Iridium, the DSM & Humboldt Simplifier or the Atomic AmpliFire, I think the Endgame would have difficulty keeping up with the competition, especially in terms of tweaking of the amp sounds, size and options. At a comparable price.
All things considered, I like this pedal – especially the build-quality and look, but I don't think it is sufficiently usable and kick-ass sounding that it will replace the current "no amp" I have on my pedalboard.