Simple and straight question: Will users that access the SSRS reports I have connected to my SharePoint list inherit the permissions set for that list, including item-level permissions?
PirateEric's comment is correct. Though, it's not that SSRS respects item level permissions, as SSRS is just making calls like any other app. So it's entirely the responsibility of SharePoint to implement permissions. If SSRS makes the call as a user with access to everything, then the report will have everything. If SSRS makes the call as the current user, then the report will only have the items that the current user has access to.