DW is really starting to tire out now, since DW5 does not add anything substantially new that hasn't been done already. I was hoping KOEI would make major changes to keep it fresh, but they didn't. All they did was shorten the story "musou" mode per character down to five battles (like in Samurai Warriors, which was dumb because it made the game too short), reduce the # of costumes per character, remove the bodyguard generator in exchange for vaious bodyguard possiblities showing up as you finish various parts of the game, and so fourth.
Graphically and even character-wise this game is a re-tread of DW4. The characters are slightly-altered versions of their DW4 counterparts.
The only positive difference I noticed was they eliminated the slow-downs that occurred in certain levels in previous DW games.
This game is still playable, especialy if you like hack-and-slashes, but if you've played all the previous DW games, this game will quickly feel tired, old, and boring.