I had my citizenship test and interview this morning in Niagara Falls. I know not many people on the forum go through this office but here's my experience anyway!
There were about 15 people there, and we began the test at 8.30am. They talk to you first about how the content of the test is confidential and not to tell other applicants the exact questions. There are 20 questions and you have to get 15 right. All of us finished within 10 minutes
I had read the Discover Canada guide several times yesterday, and also did a number of online practice tests. Here are three of the most helpful I found:
http://www.yourlibrary.ca/citizenship/
http://www.torontopubliclibrary.ca/new-to-canada/citizenship.jsp
http://gvpl.ca/audiences/multicultural/citizenship-practice-test
They are a good representation of the kind of question on the test. Make sure to read the information in the coloured boxes around the edges in the Discover Canada guide also, not just the main text.
NOTE: They announced before the test that if you fail, they will make an appointment with you to sit the test again in 4 weeks; and if you fail again, you will meet with a citizenship judge.
After the test, we all waited in a room and one by one were called in to speak with one of two citizenship officials for the 'interview' portion. When it was my turn, the woman (who was very friendly and nice) gave me the results of the test, then went through my application, asking for each piece of original documentation: all passports, transcript, ID forms. Then I had to sign some documents saying I had never been arrested etc., and that all the provided information was true. Then she told me my oath ceremony would be August 28, and to expect the oath letter mid-August! Very pain-free. I was one of the last interviewed, and everyone before me came out from their interview within 10-15 minutes also.
I am so thankful to be almost finished with this process!
The very best of luck to everyone!!