Can anyone share info on how is Paris business school in Paris for IMBA?

I cannot imagine that it is the best choice for anyone.

I'm not sure I'm familiar with Paris Business School.

Do you mean ISC Paris Business School? If so, this school offers a range of AACSB-accredited MBA programs, which, due to their accreditation status would make them at least reputable and generally speaking a good investment.

However, if you mean Paris School of Business, I would probably avoid this, since it lacks accreditation from AMBA, AACSB, or EQUIS.

What are your goals?