Overlord is a very decent addition to ME2's DLC library. Definitely worth downloading.

User Rating: 8 | Mass Effect 2: Overlord PC
Overlord is a downloadable add-on for Mass Effect 2. It takes you to a very unique planet with plenty of details, and you'll be able to take a ride on a new vehicle called the 'Hammerhead'. Almost a tribute back to the Mako from the first Mass Effect game. You'll be able to explore lots of ground on this planet, and its outdoor environments are beautifully detailed and could be best described as being 'lively', I suppose. The storyline unfortunately takes a while to become interesting, and starts out giving you a bad first impression, it will leave you thinking the DLC will be disappointing. But as long as you play the mission for at least it's first hour, you will begin to realize how good this content actually is, the plot will thicken and you'll begin to experience some exciting combat sequences, new original soundtrack, and the amount of content to enjoy will increase. This DLC contains a worth-while length and story, but takes a little too long to catch your attention.

The good:
-Story eventually becomes very interesting.
-Exciting combat sequences.
-Beautifully crafted world featuring alien wildlife and large-scale scenery.
-New vehicle is fun to cruise around in.
-A fair downloadable add-on length of around three hours.

The bad:
-Takes some time to become interesting, story-wise.
-Ending is good, but almost seems abrupt.