In Joomla 2.5 it names its MVC instances using a prefix, then the method then the name.
ComponentViewComponent or ComponentViewDefault
To do this it looks for the word view in the string of the class name. So if you name it like so you will cause an error:
In this case you might feel naming it review would cause no harm, however it does contain view inside. The error Joomla gives does not point you in the right direction normally either.