Best in its series.....
So far RE4 is the best in the series, i like that you can upgrade your weapons to fit your need. Plus this game has the basis of other RE games like the herbs ,combining health etc, but it also has items that you can combine and sell.
What I really like about the game is the whole feel of it. Though most RE fans will say this wasn't a very scary game, i think it has its moments. The atmosphere created fits its entire theme perfectly.
RE4 also has extra gameplay features like the traditional Mercenaries, but it also lets you play a character who had a different view on Leons adventure.
As for downfalls i cant think of any big disappointments except for mabe a couple glitches.
Overall this is a must play game. I think anyone who loves survival horror/action adventure games would appreciate this game very much.