I bought the previous Nextbook 8 tablet about a year ago (8HD). It died just short of the 90 day labor warranty period. Nextbook replaced it quickly and without a hassle. I still use it occasionally and it works fine. When I saw this updated tablet, I had to have it to add to my collection of tablets. I got sucked in by the quad-core processor and the promise to update Android to 4.4.2 KitKat (The nextbookusa web site says "Firmware will be updating to 4.4.2 on July 15th 2014".).
For under $100, this is a great tablet. It is thin, light (14 oz.) and well made. The screen is average for this price point - bright but off-angle viewing is only fair. It has about average memory (8GB system, 1 GB RAM). There is a HDMI out port but no Bluetooth or GPS. Documentation is very good - a 27 page printed manual and a Quick Start Guide (these are also in PDF form on the tablet, use Ebook App to read). It is fast (Antutu benchmark = 19,500 and Quadrant Standard = 5,300).
I had some concerns about the limited App memory (.98GB total/ .795GB free), so I did some testing. I downloaded 37 of my Apps that I use on my other tablets in three stages. I got some memory errors along the way so I had to move some Apps to the "SD Card". This is not the external SD card but a partition in system memory called "SD Card". After all this, I had only 180MB free App memory. I found out that I could delete some "Bloatware" on this device (you can't do this on most tablets) so now I have 280 MB free App memory. Only time will tell if I will have memory errors and need to delete Apps.
I have another 8" screen tablet that has a IPS screen, has Bluetooth and GPS, and has twice the system memory and almost three times the battery run time - but it costs twice what this tablet goes for. You do get what you pay for.
A few quirks about this tablet. You have to hold the power key to start until you see the Nextbook "Splash screen" - about 7 seconds (very long compared to most) and because the power key and the volume rocker are around the corner from each other, it is too easy to be inadvertently holding both. That will get you into "recovery mode" and you will get a "dead android guy" and NO COMMAND on the screen. In that case, hold down the power key until the tablet shuts down.
For it's price, I don't think there is a better tablet on the market. Below are the Battery run times using Battery HD Calibration. (Screen Brightness about 75%):
Music Playback = 16 hrs, 20 min.
Video Playback = 7 hrs, 14 min.
Internet Browsing = 5 hrs, 26 min.
Talk Time (VoIP) = 6 hrs, 19 min.
Reading = 8 hrs, 42 min.