Holborn significantly better than Docklands

Both test centres have multiple exams taking place so be aware that both centres are relatively busy.

Docklands centre given its location is less polished and more run down. The testing room for GMAT is very small (4 desks) and I did not have a pleasant experience interacting with the staff there

Holborn is a more standardised environment and much larger. Given the surrounding area it is busier however it is located very close to the station and therefore it is more accessible than the docklands centre.

The Holborn testing location also has much larger rooms and a isolated waiting area with lockers. Restroom facilities are also much better. I would recommend you to sit the GMAT at Holborn centre