I have seen two locations. I dont know which is correct.

If you come from Jaidah flyover, turn right from Ramada signal and you can see immediately left ( opp side of the road )

The other one I saw in Shara Kharaba. Just opposit to the Alfardan Perfumes. If you go from Sofitel, turn right from the QTel signal,, and just immediately after the small signal.