Having lived in Dubai for 18 months, I never even heard of this theatre. We came for a show on the Complete Works of Shakespeare Abridged (comedy show).
The good news is the theatre is based in Mall of the Emirates so there is plenty of parking and decent restaurants in the immediate area. I recommend parking on the second floor car park underneath where the Ski slope is as that is the same side and level as the entry to the Theatre. This is very convenience provided you know where to find it. We walked around Mall of the Emirates for about 10 minutes before we gave in and asked for directions. There are very few signs pointing out the location of the theatre. I suggest they have at least standing billboards (with arrows) inside the mall and around the car park so you know where to go.
The main performance hall is very comfortable, large soft chairs, very clean - can't complain. We booked box seats but due to the low attendance we could sit where we wanted - nice flexibility.
During the intermission, there is just one Costa coffee stand that is beating out hot drinks and snacks. This is another area of development where perhaps they could have a second option or offer pre-orders for people so that things are turned around more quickly. Alternatively, you could just march into the mall and pick up something quickly which is exactly what I saw people doing.
There are many different events and tutorials going on at this theatre. I recommend checking out the options on their website and, if you're passing through MOE, there is a billboard outside with different craft events etc.