Robert Ritchiewrote a review of MSR XGK EX Multi-Fuel Stove on January 23, 2018
Familiarity: I've used it several times
This stove is ridiculously powerful. Typically, I use a Jetboil flash for most of my backpacking needs, and until this last trip I took winter backpacking, it hasn't been a problem at all.
But when there's no surface water and you're forced to boil snow, the XGK leaves the jetboil in the dust. After boiling multiple liters of snow, I was still waiting on the jetboil to boil the first two cups I had placed in it. the XGK is definitely my go-to for anything below freezing.
However, the stove is a little much for everyday camping. I don't think anyone doing summer backpacking with accessible waters and temperatures that aren't detrimental to canister stoves would need this. But it certainly has its place in the hiking/camping environment.
As for liquid fuel, I can't say it's too much more work than canister stoves. It's certainly a little daunting to get into, considering you have to care for the stove, but with the shaker jet, the videos that MSR provides, and the kits they sell, it's not a very steep learning curve.
With weight, I can't say that this is as light or compact as a jetboil. Lugging around fuel bottles, the stove itself, and the inevitable cookset is definitely bulkier than a canister stove. I don't think I'd take it summer backpacking, simply for the weight savings that taking my Jetboil would provide.
I'd definitely buy this stove again, and it's already saved me from a pretty frigid couple of nights.