Excellent

Being a non-native English speaker, I found hard to improve the verbal part with the traditional books and resources. What I found really great about this course is that it really helps you understand the things you have to look at in order to answer correctly. After the course, you realise that it's not how you speak English but how you scan the sentence or passage.
Compared to other resources, it brings you step by step through the different cases and you gradually and naturally become ready to understand how the test builders think.
Highly recommended, in particular for sentence correction and critical reasoning and especially for non natives in English