I have a POUG offer on my work trip home from BOM (a 10 hour flight...) for £450 to go from WT+ to CW.

I've never been in CW on BA, and this would also push me over the Silver threshold 2 months early, so I'd at least get a few more LHR lounge visits for my money, too...

But is CW worth £450 of my own money over WT+ (which work have already paid for?)