I did the PMP Sureshot course from Navi Mumbai from Knowledgewoods and passed the exam. The trainer was Ashish Dhoke. The training was very good and useful. Though I did not give the exam in 45 days as recommended, I did manage to finish in 6 months.
You should go for this course, once you have decided you would give this exam and do it within a short time period. The time period should be more like 3 months and not longer.
Person giving this exam should have good hands on experience of project management. The exam would be difficult to pass without basic knowledge and that cannot be taught. The institute refreshes your concepts and guides you in the exam handling aspect.