For once my org's third-world IT infrastructure (IE 7) comes in handy. Everything is gloriously degraded down and readable and with only slight layout breaks.
Definitely a candidate for A/B testing.
I did find it to be a strange choice. I also thought the main navigation (Compare Basecamp Breeze, Make a group email list) was a Google Ad and instinctively ignored it. It took me a few glances to realize that it was actually part of the site.
Yes. It also has the tops chopped off some times due to bad sizing.