My experiences with Blackboard paint a far less flattering picture. An "intuitive" interface is entirely subjective, but I've hardly ever tried to do something new without wandering through confusing, cryptic and downright hidden menus for half an hour. Computed columns in the gradebook are crippled for no reason (formulas cannot be nested) and use an obscene[1] "keyboardless" entry form with pointless user-side validation. If you ever want to give yourself a migraine, crack open the source to any nontrivial page and try to tease apart the miles of needlessly complicated and frequently broken Javascript.

Granted, my university does not use the latest-and-greatest version (yet) of Blackboard Learn, but for someone with your history of using the application these should not be totally alien points.

[1]http://img267.imageshack.us/img267/9500/whygodwhyl.png