Having built this one myself I can recommend it as a good kit, but you will have some work to do.   There are a LOT of aftermarket choices which will really enhance the kit.   Knowing how much they improve the look, I would always avoid the OOB approach.
The one thing to remember with building a ship like this.   Since ships are modified and change their look over time, you need to make sure you've decided on what time period you plan on representing the ship.
The Tamiya kit is reasonably close to the way Enterprise looked in the mid-late 80s.  That's TOTALLY different than the way she looked as commissioned, and quite different than the way she looks today.  
A must have reference for this is the Squadron Signal Enterprise in Detal and Scale, but it looks like Squadron is out of stock.  This book is terriffic and shows the ship as she apeared during the time the model represents.  And it ALSO shows several places (port side forward sponson and other places) that the kit got wrong.   
http://www.squadron.com/NoStock.asp?
item=SS8239 And we're all here to help if you have questions.
Tom