Already on disc 2... Absolutely amazing game, not as groundbreaking as ME 2 or ME 1 were, but it's incredible how tightly woven the story is, plus they've removed all the trivial timefillers and replaced them with a bucketload more purposeful missions... As for the combat in the above review, the combat is far less repetitive compared to 2, there is more of it, but your opponents are more varied and you can choose to make it as easy or as difficult as you want. Personally the combat in ME has always been a drawcard, I've never been a fan of RPG's that don't immerse you in the experience by making combat easy.
This will get quite a few playthroughs before I'm done with it.