The game Borderlands in multiplayer

Lately I have been playing the game Borderlands in multiplayer online. The whole process is quite seamless and the biggest hassle is either firewalls of other people and my slow 384kbps connection which causes me one to two seconds lag. Other than that it is quite interesting and the game actually makes the opponents harder if there are more players and rewards accordingly. The other reason to do this is to get quests done faster. The occasional car accidents and hectic shootouts with the locals are part of the fun. On LAN it works the same way but obviously with slightly less lag.