Join Date: Oct 2006
Location: London, UK
Programs: BA Gold, VS Silver, SQ Silver, IHG Plat Amb, Hilton Gold, Marriott Plat, Accor Silver, Radisson Prem
Posts: 16,873
In peak times, yes, it can get bad in T3. The queue is often along the departures corridor and sometimes into the arrivals building.
Fast Track pax can bypass the queue and go to the dedicated entrance.