My wife and I both use the Go Lite 50 for our summer trips. I've carried up to about 35 pounds in mine on an eight day trip--my wife carries a max of about 25 pounds.

They're good packs, simple, seem to be well made. We wish the side pockets were a little bigger...but all in they work fine. They seem to be pretty waterproof on their own, which is nice.

Then again, we're not gear heads to have to have the latest of everything. If the pack fits, carries our gear, and doesn't weigh too much, we like it!