MHT Entrance exam is based on Class 11th & 12th based syllabus. So if you are well prepare with your board then you can easily crack the exam. It only needs practice of solving papers in required time limit. If you talk about the coaching or crash course so it totally depends on your capability.To join a Crash course can be a good decision as it has daily based test & full lenght test along with your classes. You can join Vidyalankar or Pace, these are the best options.

Good Luck!