Got a lot of catching up to do...
First, I finished Resident Evil 4 HD, first off, yes it is an excellent game and unlike RE 5, there's actually a whole lot more that you can do. You see RE 5 you just walk through a linear path to get from point A to point B, most of time anyway... RE 4 is a little more complex, it almost feels like a huge open world game where you explore a ton of stuff and even do a few sidequests. There's tons to do there and the replayability is off the charts.
I felt that even in easy mode, the game can be very tough, some boss fights are pretty hard and even some enemies later on are very relentless and scary, though, the end boss, Saddler, for some reason, is a complete f***ing joke. The fight with Krauser is one of the higlights.
The game's light on puzzles, but there's a lot of variety.
The plot, well, it's kinda weird, you would never guess in a million years this was a Resident Evil game, because it's so far off the beaten path, it feels like a completely different game that happens to star Leon, a beloved character from RE 2. And occasionally too silly, the President's daughter getting kidnapped would've caused an international incident. But only one man is sent.
It's part horror, part Michael Bay shennanigans.