Impressions from Burj Khalifa are the same as from the wheel or the palm, it's just too huge a thing to fit in your view. Definitely the main place worth visiting. Even feels a bit uneasy somehow amidst such skyscrapers everywhere.
Impressions from Dubai Mall are more interesting, the first time we unintentionally entered it from the most expensive side. We just radiated absolute poverty and uncertainty. A thought crept in that we entered somewhere we're not allowed. That's also where we first saw where all the native population hangs out. But having gone a bit further, it turned into just such a big museum in the form of a shopping mall for us. Some aquariums and waterfalls three floors high, an internal Chinatown, all the stores you can imagine, a fifteen-minute air-conditioned passage to metro trains (this is the most Dubai thing ever).
Dubai Frame - an absolutely senseless and merciless structure, there's absolutely nothing to do near it. Museum of the Future is very beautiful, definitely worth walking to it. And in general in this financial district of Dubai there was a constant feeling that I'm on the human planet in Space Rangers, if you know what I mean.
In short, lots of impressions. Dubai is quite simple and cool, despite its obvious disadvantages. Worth coming there several times and seeing everything you didn't have time for.
PS. "Thanks to" recent news, we flew back not over Iran, as we should have, but over Pakistan and Tajikistan. Watching the sea outside the window change to desert, and those to tall mountains - awesome.