There is no limit to the number of duty free shops at Dubai Airport. We visited this one at Concourse B. They have helpful staff that will point out promotions on items. Of course they are trying to sell them also. But on average, the prices are reasonable and much less than other Duty Free Shops. We left Zurich and was happy to have waited as we made a connecting flight in Dubai and did shopping there for much less than Zurich. At most times, the shops will be busy so give yourself time. All credit cards and foreign currency accepted. Wheelchair accessible.