I was at one time, but not anymore. It really has nothing to do with the cartridge though. My first custom rifle I had built was a .25-06, and that is what has soured me to the cartridge.
I made a lot of mistakes with that build. First and biggest mistake was paying too much up front to the Smith, and relying on him to order my parts. Secondly I chose the wrong stock for my project, and that dictated the barrel contour. So I wound up with a heavier rifle than I'd have liked that took way too long to build.
So in the end I have a rifle I don't like in a cartridge I really wanted to like. The rifle shoots well, and I've killed a couple animals with it. However, it pretty much just sits in the back of the safe never to be used again. I've moved on from the cartridge as well, and it doesn't interest me anymore.