Originally Posted by
tinkicker
As Mapman said,
An advantage of this service is if mid-trip your plans change (say a random airline cancels your flight) you can contact them and alter your pick up terminal or timings.
Reckon this is the best option. No checked baggage to worry about going T3->T5 but probably quicker to have my car at the right terminal rather than have to do Flight Connections, especially as I'll have been travelling for 23 hours.