I've been carrying a Gerber compact multi-tool for about 15 years. My wife bought it for me for my birthday, and it's been the most useful gift I've ever received. I use (and sometimes abuse) it almost every day. The tools that I use the most (in order) are the pliers, knife, screwdrivers, and scissors. The only tool on it that I've never used is the can opener. The one thing I wish that it did have is a file.
It's held up remarkably well. I had to replace the sheath about 5 years ago, but other than that, no problems at all.
Tom