Originally Posted by
xliioper
No way of saying without knowing you typical routes and flight days and times. You'll likely notice a difference for C+ upgrades, but probably not much for FC on most routes.
Agreed as to F. As a Plat who flies out of LA and NY, I've only had three complimentary upgrades the past year (all on short flights like LGA-BOS where most people probably don't think the roughly $90 uncharge is worth it for F).