Like most human allies, his hit points aren't his strong suit, but he more than makes up for it with his strong SPECIAL stats and extensive weapon abilities.
If someone's Lone Wanderer seeks a smarmy hitman for hire – with an extensive past among the Capital Wasteland and raider life – then Jericho is a perfect companion. He's a former raider, current resident of the city of Megaton, and optional companion should players have an evil enough karma.
The last of Fallout 3's human companions, Jericho is undoubtedly an intriguing character.