I personally own cyma AK and almost everyone in our team owns one. I can recommand them for the price. Nothing to worry about exept perhaps the FPS limit on field, many cyma AK shoot over 400 FPS with 0.2 and you will need to change the spring. As you are new to airsoft this can look scary but it is not, worse case ask the retailers about the FPS of the gun before you order it.
In m4 style the new JG full metal body line are very good too for a low price.