Legendary is definitely a step up from the original... that goes without saying. However, it's not as ridiculous as legendary on Reach. I find this game progressively difficult, as the first two levels are pretty manageable (especially if you're completing the Bro-Achievements aka playing Co-Op). At Truth and Reconciliation, things take a much more difficult turn... this is kind of frustrating but excites me to see what further levels like The Library and The Maw will have in store.
"Don't you know blackmail is wayyyy uncool?"-Ryo Hazuki