are you near them to be able to buy a pastry and see what it is like? Perhaps call a leading hotel and ask to speak to their pastry chef and see what the recommendation is. Or perhaps call the most sought-after wedding planner in Dubai and see what cake shop they recommend.
I agree with Lisa's assessment; they have a lot of custom designs and lots of fondant work (which is neatly done; at least I didn't see any glaring errors but it's not top tier, You might not have a lot of choices though.