Does anyone get excited about this caliber?
I don't know that "excited" is the right word, but I think it's a great caliber and I had fun with mine while I had it. Wish I had it back!
What game do you use it for?
Mine was a Ruger M77V (heavy bbl) that I bought to use on coyotes. Took it deer hunting once (once!) and swore never again to pack a varmint bbl around on deer hunt. (Got my deer, though).
What game/hunting conditions do you consider it to be inadequate for?
It's versatile in that you can load 75 gr bullets at 3600 fps for long range/small game, or go to the 120 gr loadings for deer size critters. I think the .25 is, at maximum, a deer/antelope caliber. While you could certainly kill elk with it, there are better calibers for such a large animal.
Thanks!!