The Secret Armory of General Knoxx does a great job of both extending the Borderlands gameplay and bringing new elements like creatures, weapons and the new level cap. (metacritic.com)
New and imported heroes alike start at level 30 and work towards the new level cap of 60. (darkstation.com)
With it comes a new class, new level cap, new quest modes, and plenty of new content. (co-optimus.com)