The Infrastructure Minister suspects the grandeur of Auckland's City Rail Link stations will surprise users.

Chris Bishop's announced the build will be reviewed - after the project's former boss claimed it could have been completed for half the $5.5 billion spent. 

Bishop says the architecture is amazing, and some might describe the stations as palaces. 

"They're going to be incredible, but they come at a price. And you've just got to weigh up whether or not it's worth the price, and like every other project, we should do a review once it's open." 

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