I found that it rattled if I used the hardware they sent me, so I use zip ties instead. Zip ties are cheap, too, so if you want to take the baskets off once in a while (like if you know you are going to do a long ride and you want to save the weight) you can do so pretty easily.

I leave them on all the time, but I would not if this were my only bike. They are much more useful than grocery panniers, though, because they hold more. (I hate grocery panniers; everything falls out.)

But Jeremy wound up getting another Cannondale pannier after all. He figured out that the piece that broke is a part that is used on a lot of different brands of panniers, and he talked to the manager at REI and asked if they got a lot of returns for that part breaking, and the manager told him he'd never seen a pannier break that way, so it might be a fluke. He went ahead and got a replacement, and if it breaks, too, then he'll return it and start over looking for something else. The Cannondale really is the best option for his purpose (books plus a computer plus looking somewhat professional) as long as it will hold up.

He thinks he might have hit a pot hole and damaged it that way, so he is going to try not to do that anymore.