Yes, the Friday prayer and khotba gets preformed there. Yes, the khutbah and Friday prayers are held there.

Really beautiful place for shopping.walking.with awesome foodcourt.

Yes. Free parking available

Yes it is

I would like to answer any question about Mirdif but need English please.

As, far I know they indeed do.

Sephora it has wonderful beauty products

In which brand?

Yes

You didn't tell what transportation you want to use but if you have a car you can drive from satwa to trade center R/A then exit to Zabeel Road straight till you reach exit to al-Khail road twords Rashidiya and drive straight to cross over Mohamed Bin Zayed road then you will find exit to Mirdiff city center after 1 km.