Well firstly I should point out that these games are simply not your average expanded add -ons , they are 2 completely new and different games set in the Rockstar Universe of the original GTA4. Expect all the same humour, wit and playability as the original but with 2 different characters to play with.
The first game the lost and the damned (TLAD) follows the exploits of a Liberty City biker gang called the Lost. This is very enjoyable as you have all the sandbox action of the first game but you are now a hard ass biker, which is pretty cool. Stealing bikes, bike races and shootouts with other biker gangs are excellent additions to the game, and there's even a cameo from some of our much loved characters from the original.
Second game is the ballad of Gay Tony, you play not as Gay Tony but as his bodyguard, which again is pretty cool. This means taking out hostile forces, keeping the club (which Gay Tony owns) safe and basically being a bad ass. In this game there is the added Fighting championship game in which you pay a few dollars to enter and you stay in for as long as possible being pitched against various different guys (first with fists, then knuckle dusters, then baseball bats and knives)
All in all its a great game sequel to an already much loved sandbox drive-em-up...
Great game that's why I gave it 5*'s.