Yes it will! But only in a good way. An offer wall is always a great idea, as users enjoy choices! This leads to more completions and more revenue for the publisher. However, the only thing users enjoy more than just choices is the option to choose a survey. Whenever humans get to express their opinion, it makes us feel satisfied. That's why you may see more users completing surveys that watching videos or downloading apps to get a reward. Fear not, surveys as surveys offer a great eCPM this is good for you!