I'll repeat, in part, comments posted on this thread some time ago. Bear in mind I am not in any way financially connected to WU other than as a user.
I've used WU for years without issues and have complete confidence in their ability and honesty in completing my transactions. The fee is just a...
Percentage wise, here in Argentina a huge jump. I follow some US prices (food/wine) and while coffee price there has increased, it's no where near as dramatic as in Argentina.
Publix in the US v Carrefour here
While the coffee here is still not great, (unless top quality coffee is purchased at an exorbitant price) I won't switch to tea (well, ice tea is great).
WU fees are posted on their website and I consider the fee as a cost of living here. Cash pick-ups or direct deposits to a bank account are the options I use. They offer discounts at times. Their service has been excellent, in my opinion.