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