I use experiandirect....creditsesame...
US Bank offers a credit score link on my credit cards' account page, and when I click on it, it takes me to experiandirect.
The OP asked where he can get 'somewhat of an idea of his Experian score'. Creditsesame and experiandirect gives you 'somewhat' of an idea. They both show all your accounts, CL's, payment hstory, etc....and break them down quite accurately.
Keyword in the question is score. I have found no correlation between the FAKO scores they offer and my actual FICO scores.