unboxing racerstar br2205 2600kv first impression overview

Hi there!
Today i had the Racerstar BR2205 2600kv in the mail.
Please comment what you think.
http://www.banggood.com/Racerstar-Racing-Edition-2205-BR2205-2600KV-2-4S-Brushless-Motor-CWCCW-For-QAV250-ZMR250-260-280-RC-p-1071132.html