I found it lots of fun. Also I found it because I mistook it for Bloodlines (I was waiting for Bloodline's release). At any rate, I loved it. I've replayed it several times since then and the game is still good any time I do it.
I don't know what you mean by "wasnt tremendously faithfull to the source material" - the Disciplines were at least a very accurate depictions...aside from learning them from a book, at least. Sure, some parts were a bit off, but it comes with the transition to a different medium. All in all, I think I'll call it at least somewhat faithful. Also, I think it was more in line with 2nd edition VtM but I'm not too familiar with it to make an accurate judgement.
What I hated in the game was the sometimes moronic AI of the companions. I don't think there was an option to stop autocasting because I recall I just left them behind and did most easy fights with Christof, otherwise I'm pretty sure they would just blow tremendous amounts of Vitae to kill a cockroach. And also the modern day guns were really weird. Unless investing in them, it was better to stay with the machete. And the most irritating part of the game was, I believe, a fight close to the beginning of the game, when you faced a scythe wielding enemy in some...caves? Caverns? Tunnels? At any rate, that guy is a motherloving c*** - I still shudder at the though of him. He would make your party frenzy really easy and once he did that - it was over. I must have played that fight at least fifty times in total - I hate him in my guts.