There are a lot of good things about the latest version of the famed Nobunaga no Yabou series, the map is excellent, essentially google earth like map that give a pretty good reflection of how geography interacted and mattered with the period. That the extension castles you build this time around actually mean something (and mean alot) is good, that you can no longer hoard a million men in the front line and no one in the rear is a good historical reflection. That (almost) no single general can just mow down everything from Kyushu to Hokkaido is good. (having 10 random generals is now more useful than having 2 good once.)
However, so many other aspect of the game is clearly unfinished, that it's hard to recommend this game to either new or old players of the series, at least, until it's expansion pack is released later this year.
The Battle, while showing some degree of more historical authenticity, is way too simplistic and repetitive (not to mention extremely annoying when reinforcements reset the battle 5 times in a roll), the options on schemes and other government choices are too vanilla, the balance is also wacked because the Oda clan had a completely unreasonable ability that once they reach a certain point it would take an exceptional player to be able to withstand the odds.
There are those of us that will like this series regardless because we love the history of this period and this series have always been by far the best in representing it, however the game at this stage is simply not finished, which is reflected by how much the expansion pack is set to change this into what is essentially a completly different game (this would be the first time AFAIK that the expansion pack present a utterly different combat engine.)
So in short, it has laid the foundation of a one of the best game of the series however it is only 1/3 of the way built , wait for the expansion pack.