I've used a lot of portable stoves in my life and must say that this is one of the best I've found.
Caveat: This is more or less a "special purpose" stove that is truly one of the best for its "purpose". But, it is a water boiling stove, not a gourmet and/or simmering unit. To boil water fast for dehydrated and/or freeze dried foods, you'll be hard pressed to find anything that combines light weight, compactness, durability, and speed with such fuel sipping efficiency.
You can control the flame a bit, with practice. But, the nature of this water boiling machine is to put the heat on the attachable cup (call it a pot if you want to, but it is really just a large cup with a heat exchanger welded to the bottom). Exactly what you want to boil water fast and limit the need for carrying a large amount of heavy fuel on longer trips. But, not for cooking from scratch and simmering sauces, etc. If that is what you are after, try the MSR Dragonfly Stove. It's the cat's meow for slow cooking, simmering, and back country baking and can still boil your water relatively quickly, for re-hydrating foods and making hot drinks. That said, if what you're after is a fast, efficient water boiler, you really can't go wrong with the Sol.
If you often pack with a partner or group, like me, try having one guy take this along for hot drinks and quick boiling needs and have a second hiker bring a 2nd stove like the aforementioned Dragonfly along for your more glamorous supper and large pot cooking needs to have the best of both worlds.
A couple of a side notes:
Jet boil makes a decent little coffee press that fits this unit and weighs almost nothing. It makes better coffee than most and fits inside with the rest of the parts to this stove easily.
Give some serious thought to how you intend to handle your fuel needs with this stove. You "can" fit the smallest iso-butane can inside here for storage. However, on my longer trips, I take along a larger 440g can instead of more of the smaller canisters and end up cutting a decent amount of weight in metal container weight. Less space is good, less weight is even better!
Lastly, the neoprene sleeve offers some protection from the very hot cup/pot. But exercise care when removing this from the burner unit, after heating it. The joining mechanism sometimes sticks (ouch if you splash boiling water out on your hand while removing it) and the sleeve does not completely insulate your hand from the heat. Not a deal breaker… just something to pay attention to for safety's sake.
UPDATE:
Just wanted to take the time to share with everyone that one of the "hooks" on the plastic tripod that supports the gas canister broke (Temps were in the low to mid teens and it got a little bit brittle) during my last trip to the mountains. This is not really surprising, as we all know that the "pro" of plastic is that it is lightweight and less-expensive and that its "con" is its durability.
However, I shot Jetboil customer service an email on a Sunday night to ask if this would be covered as a warranty issue and, low and behold, I had a response early Monday morning that a replacement would go out to me that very day (at no charge). This kind of customer service and product support is simply nonexistent for most companies these days and I wanted to give credit where credit is due. Way to go Jetboil! High Quality, Innovation, Performance, AND OUTSTANDING CUSTOMER SERVICE! Keep up the great work!
NOTE:
I would also mention that the weight you saw listed does not include the pot holder attachment and the plastic fuel can stabilizer tripod. You'll find that information in the fine print if you look at the listing again.