Google Panda is not ‘Kung-fu Panda’ but it is Dancing Panda! Everyone is ‘dancing’ with its rhythm and update when it comes for entertain us! Sound’s nuts yeah!! Webmasters and SEOs around the world know what exactly happens when Google panda release any update.
It might be a separate discussion point between experience and attitude and what to choose. It depends upon the project time and quality. It is advisable to go for experience of minimum 3 years if your project is medium to large size. For small work or update work it is OK with less experience WordPress developer.