I've been using a firefly burner for about two years now, using it year round. I have the esbit adapter, which mostly gives me a degree of backup comfort -- I hardly ever use esbit...
Probably for the first year it was mostly stubbornness that kept me using the stove, but, over time my wood-choosing/fire starting skills have improved to the point where I actually look forward to using the stove at the end of the day and will continue to use it for sure.
In cold weather, when I would be reluctant to carry enough alcohol or esbit to boil water, and the extra wood burn time has not been a burden. I thought I'd have a chance to melt snow with it this winter, but alas, that will have to wait till next year.