I had a Dell Inspiron 1545 laptop and it was honestly the worst laptop I have ever used in my life. The built in bluetooth didn't work on any of the laptops in the range (major manufacturing fault). It wasn't really a deal breaker but it was a feature I was looking forward to using. After a period of time some fault would develop on the motherboard which meant that you couldn't charge the laptop at all, regardless of charger or battery being used. This also happened with lots of other people, another manufacturing fault I guess.
Other issues were over heating issues, screws randomly falling out, and the screen bezel coming off at the corners.
Other issues were over heating issues, screws randomly falling out, and the screen bezel coming off at the corners.