I did! I got it last weekend an I'm loving it!
I had only played the Gamecube version, but that was ages ago. I'm so addicted to this game and the extras make so much cooler. The controls work perfectly and make the game a lot better. Now I'm going to go through professional mode, beat that, and go through it again with the special costumes and weapons. CAN'T WAIT!

I'm personally surprised at how much time I'm clocking in the Mecenaries. I never really played it on GC, but I'm wearing it out now.

I was realy proud when I got 50+ kills in a row with HUNK in the castle, only to find out that others have gone 100+ on the same map.

It also forced me to realize that the TMP and flash grenades are not, in fact, completely useless. Selling my flash grenades was probably my biggest mistake before. 

 I always keep all the grenades I get, unless I am really full of stuff... which keeps happening... although I am still on my first playthrough, and currently at 5-1 (right before the regenerators, I am considering shooting their leg, taunt them to jump up to bite me, avoid then stab to death, since I hate leaving enemies alive at any place)

I've gotten everything in the game except finishing Professional Mode. I comtemplating whether to do it since normal was crazy. Has any one beaten Professional yet?

RE4Wii is really a great game. I'm in the 'last chapter' fighting a boss, so I think I'm nearly through it. RE4 looks great, plays great (now you can clearly see, that the Wiimote works fine for shooters) and has a great atmosphere. I agree, that RE5 on Wii would be great. At least RE:UC is something to look forward to. And possibly Wii gets a port of RE5 later, like PS2 get one for RE4.

I beat professional, but I still have no clue how to get the Chainsaw Weapon.

Going to get it today, also going to get Strikers Charged I think. :)

Professional mode isn't THAT much hard. The difference between Easy and Normal is bigger. Just reserve bullets by using the knife.

Honestly, I really didn´t like the story of RE4. There was great graphics (for a PS2), good gameplay (although i would have liked to be able to sidestep and have a simpler melee attack), but for me the story was so cliche (even for a videogame).

The characters are all stereotyped specially Leon and his "funny" one-liners. I think that the Wii version must be better because of the controls, because I remember having problems aiming and missing from really close (well, I do suck at that).

I remember not liking the story so much that I decided to play it again just to see if it would change my impression. Now, I´m already at chapter 4-1 and the story is a big "Meh". I hope that RE5 will have a better story.

Is there anyone here who thought the same of the story and/or characters?

I've played through it on the Wii as well as the gamecube. When I get more free time again, I will be playing through it on the Wii once more on a harder difficulty. My girlfriend loves this game.