I probably have about 20,000 commuting miles on my Crosscheck. I bought it used in 2006, replaced every single part over the next four years then crashed it and replaced the frame. I think the only part left on it from when I got it is the rear brake.
The frame has two drawbacks. First, it has a short head tube. In order to have my bars up where I like them, I need lots of spacers on my very long steer tube. No problems, but it does make the bike look a little funny.
The other is the horizontal drops. Sure, you can run it as a single speed. But if you are not actually going to do that, then they are a pain.