We just got back from a week stay and rented a car. Overall, we had a great time in Aruba and do love the island. However, I read a lot in the forums before we went, and I am surprised I did not read about anybody getting their rental car broken into. We were at the Alto Vista Chapel on Easter Sunday for no more than 5 minutes and someome busted out our window, popped open our trunk and stole our stuff out of it. From what we learned after making a police report and talking to islanders, it is a pretty common occurrence.
So I just want to give a fair warning to everyone out there to be very careful, especially when visiting sights on the north side of the island. We ended up carrying our bag with us the rest of the week and leaving our windows down. We figured it was better to have a few things taken out of our trunk than having a window busted too.
Overall, it turned out pretty good. The rental company only charged us $30.00 to have the window fixed.
Also, I high recommend the Mi Dushi snorkel trip. It was great fun. The trip to DePalm island is also fun, but I wouldn't recommend the kayak trip, as they were over an hour late and still had everyone on the tirp go back on time, so their time on DePalm Island was shorted. I don't know why they were late. When I told him we had waited almost 2 hours he just laughed.