Worth GGL:

- CCR access, especially when GF is very busy
- GGL phone line and the daytime team that staff it
- When flying SH, Group 0 at LHR and a handful of consistent outstations
- Jokers

May or may not be worth it

- Recognition
- Upgrades
- Service recovery and short notice ticketing priority (your cash spend may be the key here though)

Not worth it:

The Chelsea Lounge