Aliexpress is for retail purchases whereas alibaba is for wholesale. From my experience Aliexpress is quite reliable, I ordered a couple of products and did not face any issues ! In fact, one of the products was lost during shipping and the seller gave me a full refund including shipping charges...
Comes with Charger + 8 Gb Sd card
Specs: http://www.gsmarena.com/pantech_burst-4429.php
No issues with the phone, everything works perfectly! Rooted and running CM 10.