If you are looking for a site to prepare for the SAP certification exam, this is the best site out there. The most important thing is they have the best customer service that makes guidelines easy to follow, and the questions are challenging enough to make you think about what you answered. It has all the types of questions that are necessary for the exam and you can practice as much as you want. I am finally confident about taking the real exam now. I highly recommend this site if you want to study for the SAP certification exam or just brush up on your skills.