Anyone of you doing GMAT currently? or done it recently? What was your score? 
Is it okay to prepare it at home or you need guidence and practice by the professionals?
Is it a difficult test?
Minimum how much time do you need to prepare it properly. One month, two months???
I checked some of the insituties locally in Abu Dhabi but they are expensive. They are offering the prep classes for like $1500 = Dhs.5500. And If you want to take the tutoring classes too, then the total cost is $3800 = Dhs. 13960/-.
I dont think I would take the tutoring classes if I know what exactly is covered in GMAT. I am good in Mathematics. What else do I need to know?