There have been no shortage of commentators or critics when it comes to the new Royal Adelaide Hospital (RAH), but this week members of the public were invited in to make up their own minds.

Public tours of the more-than $2 billion facility are running through the week.

Whatever the verdict, it has definitely stirred the curiosity of South Australians, with the tours booked out within two hours of becoming available.

Security was tight as groups of 12 wandered through the different rooms.

Health Minister Jack Snelling said the response had been positive.

"People have been blown away by the size of the hospital," he said.

Sorry, this video has expired There is still no firm opening date for the hospital, which will be Australia's most expensive building.

"Also by the ability that we've been able to incorporate the latest in technology, the latest in hospital design thinking from around the world."

The six-week transition from the old hospital begins on Monday, before the emergency department opens at 7:00am on September 5.

From then, non-urgent elective surgeries at the old hospital will be postponed and some patients will be transferred to other hospitals in Adelaide and the surrounding regions.

Modern facilities will attract nurses

Former RAH nursing director, Dianne Rogowski, helped contribute to the new hospital's design and toured the building for the first time.

The new hospital is set to open on September 5. ( Supplied: SA Government )

"It's actually overwhelming to actually see plans finished and completed," she said.

"It's just so vibrant, it's warm, it's soothing to the soul I would say.

"I think it's a world-class structure."

Ms Rogowski believes the facilities will attract nurses to South Australia.

"I'm sure they will attract them from around Australia and internationally, particularly with the research building next door and the universities.

"The nurses in this state will have the best of technology and teaching facilities as well as simple things, like the most modern beds, to make it easier for them."

One member of the public said it was worth the big price tag.

"I'm sure there'll still be a few teething things, but I think once people get inside here they'll get excited," she said.

"I never want to be here but it will be good. I love the day beds. Hopefully it does what it's supposed to do."