As someone who's scores are still in the 600's, nabbing 4 of the best cards USAA offers in less than 8 months and all having decent CL's is my reason for hyping them, perhaps a bit more than the average person.
I fully agree with this. I'm not sure what your eligibility is but if you are eligible you may also want to try NFCU. They are also quite generous with limits and a lot of times their CLI's are soft pull. It's fairly easy to get up to a $25k CL with them within a year or two. They're also good to deal with if you need a mortgage. They don't sell their mortgages and USAA is notoriously slow to close.