You will have access to the Emirates business lounge in Terminal 3 at Dubai. It is well signposted and is in the upstairs area after clearing security screening upon landing in Dubai.
Not to the business lounge, only the first lounge but based on my experience with that I'd think it will be good.
There will be others here hopefully to chime in with their experiences.
There are 3 main (public) levels in DXB Terminal 3/Concourse A. The lower floor is the main concourse. 2nd is the J lounge, 3rd is the F lounge (the lounges cover the entire length of the concourse). All 3 floors have boarding at each gate.
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