I previously had the ZTE Z998 (which was also a awesome phone) and I decided that it was just time for an upgrade. I saw this when I was walking through the store, and me being tight on money, decided to grab this since I realized it has Android 5.1 (Lollipop). From the first day I got this phone, I have had no issues. The calls are very clear for the most part, it sends Multimedia messages flawlessly, and the rear facing camera (though it is a 5 Megapixel, so don't get too amped up about it) has gotten me some incredible pictures. The front facing on the other hand is actually a bit laggy but it isn't terrible. The music quality on the phone is pretty great as well, though if you have too much bass in a song that you're playing you could risk blowing out the speaker so it's just best to use headphones. The text input on the phone is absolutely stunning, plus it comes with Swype for the stock keyboard. Overall I give this phone an 8/10. Definitely worth the purchase.
It wouldn't be a bad basic smartphone if it didn't have the issue with not having an overflow button. So apps like Fuel Log where you need the overflow button (3 dots on newer androids) you will be totally unable to use that function in those apps.