Great Multi-tool. I like the low-profile design and that it is all-metal. Ever piece is the exact size that I needed, and the 4mm hex wrench alone can fix about half the parts on my mountain bike. I really appreciate the chain tool and the integrated sizes of spoke wrenches. The whole design is ingenious. This tool manages to fit four tools where each separately would be huge and cost about half the price of this overall tool. I understand it may be a pain having to use the smaller profile of these tools, but the parts that need these tools on the bike only occasionally need to be adjusted and therefore it is not worth owning the more "serious" versions.I have used the chain tool on numerous occasions. It can take a little getting used to, but it saved me on a ride when my power link (sram chain) fell off and my chain went rogue. I found the chain, but not the tiny extra link, so I removed a link from the chain and reconnected it the old-fashioned way (without a detachable link). It kept me riding, and I was able to buy a new power link after the ride and reconfigure the chain. Without this tool, I would have had to walk my bike home that day, which would have been pitiful seeing as it was the beginning of my ride. I can only imagine if this was at the top of a mountain on a long ride...it would kill the experience.I have had to adjust derailleurs, handlebar stem and the saddle on separate rides. With a mutli-tool, you can tine-tune your bike on the fly and figure out the best configuration for the terrain you are riding on. I used to go ghetto and carry a bunch of individual allan wrenches that were connected with a piece of plastic. Most of those sizes you don't need, and this tool has the screwdriver and chain tool which are the next most valuable tools. It is truly a life saver and Topeak got it right with this one, which they usually do since they are a good company. I feel anything extra would be a waste of unnecessary tools.-KenAuthor, "How to Get a Job in Video Games"