Talk:Affinity/@comment-87.176.114.210-20130429175248/@comment-72.203.139.119-20130513180414

You still get the associated "perk" of the level-up even if you leveled up your warframe with the bonus experience awarded at the end of the mission. When you start your next mission with that warframe, you will notice you have additional shield capacity, health capacity, energy capacity, etc., (whatever the level-up perk is).