A sequel to Wargaming's World of tanks, World of warplanes follows suit ,and is very fun and rewarding. Although you have the option to purchase a premium resource (gold), there is no need to have the same awesome experience. The graphics are top of the line for a free game and the constant upgrades and wide variety of aircraft make the game rewarding.
The game supports almost any type of controller including joysticks. This enhances the playing experience.
My only problem is some server issues but those will be worked out in the first of the consistent updates later this month.
Overall, Im very happy with this fun free-to-play game!