Was too exhausted and too excited to respond yesterday..

720.
Now that I have taken the exam at this centre, and having taken the prior two exams at Pearson (Chennai), here are my thoughts.
1. The centre is not as professional as Pearson, but this helps you relax and eases your mind. There is no doubt that they follow all the protocols of GMAT, but in a less stern way I guess.
2. I was the only one at the exam centre (as it was Thursday I guess, and may be this centre is less preferred by exam takers), and it definitely helped as there were no disturbances, none whatsoever.
3. They offer you a scratch pad that 9 sheets, that is awesome as you won't run out of pages and won't have to ask for more half way through the exam. I received 4 sheets that last two times I took it in Pearson I think. The same goes with the pens as well, got 5-6 of them.
4. It is a relatively small centre, with just 9 seats all together, so even if it full to its capacity (which I suspect it ever will be), shouldn't be much of a bother.
5. The water post and the rest room are just outside the exam hall - means quick access and saves time. The lockers are also very close to the hall, and so can access your snacks, drinks quickly.
So yes, even though the invigilators were not pros like the guys at Pearson, it is worth taking your exam here just for the ambience. But be careful that you might not also get to panic like I got to.