Has Shoprunner actually worked well for you? I've been unimpressed. The last few times I've bought from NewEgg or TigerDirect I tried to use it but literally n

Has Shoprunner actually worked well for you? I've been unimpressed. The last few times I've bought from NewEgg or TigerDirect I tried to use it but literally nothing on my shopping list was marked as shoprunner-eligible. I signed-up because of the free-with-amex thing but I don't see myself using it all that much.