I use to carry seperate tools in a seat bag but about 6 years ago I thought I would try a mini; after looking at a bunch I decide on the Park MTB1 (now called MTB3) because it seemed better built then the others. Now that I've been using it for a awhile I like it far better then the seperate tools I had before because it's convienant and doesn't rattle around (even banded up they still made some noise). Sure there's some tools I never use, so what? But I did use one tool that I never needed helping out a stranded cyclist, so you never know when the need might arise.

I know that today a lot of mini tool companies have improved their tools, but so did Park and since Park makes a lot of high quality cycling tools for the professional and home mechanic I would trust them before another company...but that's me, I'm weird that way.