I pulled the trigger on it, which surprises even me, because I love my alcohol stove. However, the thought of not having to carry or mess with fuel is way too appealing. Even on an overnight, the new setup will save me a couple ounces. On a multi-day trip? I'll be saving half a pound or more.
I've also been cooking with 91% isopropyl alcohol lately, because the toxicity of Heet worries me a bit. Isopropyl is sooty and inefficient, though, which means things get dirtier and my water takes longer to boil. A 4-5 minute boil time for two cups of water is going to be amazing.
I wouldn't spend this much simply to save a couple ounces, but it's absolutely worth it for the weight savings combined with the convenience.