I've been quite happy with it, but recently I've noticed that the battery isn't holding a charge properly. After about a minute off of AC, the charge indicator drops to 80%. I contacted Dell support about the issue late Wednesday, and they suggested that I update the BIOS. I didn't get back to them on Thursday, and left town early Friday. They called to follow up on Friday, Sunday, and Monday just as I was getting ready to call them back. After I updated them on my results, they're shipping me a new battery.
I'm really happy with their follow up and the ease of getting a new part to resolve my issue.