Having played this game as a child, replaying it was an interesting experience.
The gameplay is unique, with the 2nd/3rd person combination and the 'live' munitions concept, although the whole 'run around and bounty some dude' that makes up the first half of the game feels stale after a while, but it is definately bareable and countered by the variety in environments and various enemy boss fights, which are all individually memorable.
The plot and dialogue is actually quite good, it caught me off guard with its witty humour, charm and twists.
The graphics in this HD update are reasonable given the games age.
The music is a little scarce but fairly fitting for the environment, but the sounds used are something i really couldnt stand. NPCs often repeat quotes over and over again, and weapon noises are the same, making for a frustrating and annoying experience occasionally, most noticable the later portions of the game.
The game itself is actually fairly short, being a linear action/adventure game, i finished it up in about 10 hours on hard, and it doesnt offer a tonne of replayability outside of steam achievements, and i noted a problem with the steam achievement system and the games save system with collectables.
The game is fairly short, but its definately an entertaining blast and rewarding and memorable to playthrough.