CONGRATS on your Approval and the AWESOME SL!!!
From my experience and others' reports, the SL on this card should grow if you are starting with a decent limit. It seems that cards at $500 limits get stuck.
Even if you don't get an auto CLI within a year, US Bank is pretty good with granting CLIs when requested (at a cost of an HP, of course).
Congrats on the new card @shafico! -- us Cash+ card is pretty solid and definitely has earned its place in my lineup. Enjoy!
Congrats on a great card and a nice SL from US Bank!