What do you need to know about LGW?

On arrival the dedicated EK Chauffeur Drive area drops you right at the door to check-in - there is usually an EK porter there to take your bags right to the desk.

imho the only negatives are sometimes a long queue at Premium Security (but you can go to normal security which is fine) and the walk from the lounge to the gate (unavoidable). That said, in lieu of direct lounge boarding access, EK operate a separate boarding area for J/F/Status so there isn't a massive boarding scrum.

The lounge is standard EK new style outstation and massive. It is probably the best lounge at LGW from all carriers - catering is superior to LHR, I think.

On return there is not only a dedicated J/F drop, if you are held up at immigration by the queues (it was awful earlier this year but now they have installed 12 new style e-gates so should be slightly faster), then EK baggage handlers will pull all J/F tagged bags of the belt and have them placed between the belts for pick up.