The Good: Great variety of tools All metal tools Chain holder Break apart design
The Bad: Pocket heavy Not a shop tool replacement Plastic can flex
Topeak's Alien line of multitools has been progressing for sometime now and this version is top-notch. The Alien has a great variety of tools and the metal constuction feels solid, but the plastic frame can be flexly for certain jobs.
The break apart design is one that sets this tool apart and allows you to integrate the different sides. The chain breaker is a great example as it uses the hex wrench to turn the breaker pin in. The breaker works so well on this tool that I have never purchased a more shop specific one. Also love the included chain holder, fits perfect and means no more homemade ones from spokes or other wire.
Don't be fooled into thinking this is a pocket tool though, it's not that light. This is a pack tool and a very good one that doens't take up a ton of space. It's also not a replacement for decent shop tools. This is a great trail side, but not built for heavy wrenching. I have found that trying to remove items like cranch bolts or peddles aren't going to happen. This tool won't give you enough tork and it'll hurt your hand a bit.
Overall for the price and variety you can't do too wrong with this one and for the right price it's hard to beat.