Been reading all the comments.... I find it comical when people debate the weight of these tablets. Oh I cant hold something that's 12.8879377 grams heavier than this other one.
Come on man.... none of them weigh much at all.
The GPS on mine works great. It has a bunch of other sensors that work with other apps like a seismograph (I have several gas rigs next door, if you set the thrive on the floor and turn on one of these apps you can see how much they shake the house) there is a decibel meter app to measure sound, 100 GPS apps, Barcode scanner apps, and one I really dig is a PDF scanner app for the camera, it scans documents REALLY great.
You can watch netflix, not sure about Hulu. All other web media, I watch with no issues.
The glass is pretty tough, I'm not nice to mine and it hasnt gotten scratched yet.
I have an extra battery to swap out so both charged up will run far longer than I can use it in a day.
I had an iPad. It was thin but seemed to weigh far more than this thirve, and it was not easy to keep a hold of with normal sized man hands.
I had a nook color.... to small. Sold it.
U dunno what the deal is about the SD card, I'm updated and I read/write on mine all the time with no issues.
Google earth/maps and a bunch of other GPS dependent apps all work great on it.
I will however agree, if $50 more will buy you new w/ 1 year warranty and 30 days to take it back to a store..... grab it. it might save you a headache if you get a defective refurb.