The build quality itself isn't too bad considering the type of device and where you're getting it from, but it does have it's faults at times. OPP has been trying to fix a lot of the quality issues, and they've done a pretty good job. They got on CircuitCo when the shoulder buttons were having issues, and they bought stronger LCD Cables to prevent future units from experiencing the Purple Tint Of Death. However, I think there is one problem that really needs resolved: The plastics.
I don't know if it's just me and a few dozen people, but over time, the plastic has cracked. What is strange is that I haven't done anything to my unit to cause it...the cracks just popped up. The first one I noticed about a month ago. I picked it up, opened it and - there was a crack on the right side of the hinge, moving towards the center. Than, just a few days ago, I noticed a little something creeping up the left side of the lid (The side with the logo). Opening it up and looking closely reveals a crack going all the way down the bottom plastic of the lid (The side obscured by the LED lights) and it's working it's way to the back. The same thing is happening on the right, too. Not sure if it was a screw thing, but just in case, I loosened them a little. I'm a little afraid that the cracks aren't going to stop dead in their tracks. I would just use PCB Glue, but to do that safely I'd have to take it apart... voiding the warranty. I really don't want to RMA for something as silly as plastics, but I need it to protect the innards and make game playing a more comfortable experience. So ya, the Plastic casing needs work. To be honest, I don't think this plastic would be too bad for products that just sit in one place - but something like the Pandora that gets constantly moved around all the time... Not so much.
These days, the Pandora doesn't leave the house unless I've got some sort of protection to keep it safe. If you plan on buying a Pandora, I'd recommend a carrying case (Be it the official one or one unofficially supplied by Link) They might lower chances of what I'm going through.