Here is our landing experience as well, thanks again for all the help from everyone here in the forum, it made the application process so much easier to navigate:
My wife and I landed at Pearson Airport (Toronto) on 9/14, at about 9:30 am. We waited in line for about 20 minutes to get through the initial customs check, and let the border officer know we needed to perform our landing for PR. He directed us to the IRCC office onsite, and when we entered the office there was only one family in front of us. The interview with the agent took us about 20 minutes to complete, after which she directed us to the Service Canada office, which was the next room over, and once again there was only 1 family in front of us. However, the room was PACKED when we walked in with what the Service Canada rep said was people with more complicated situations. It only took us about 30 minutes to get our SIN, and then we headed downstairs to the baggage area where the next CBSA officers were located, it was a ghost town so no wait at all. There we presented our B4 forms with the accompanying goods information, and the goods to follow information. The officer then welcomed us to Canada, and congratulated us on becoming PRs. We finished up at about 11:15 am and we were on our way out of the airport. Every person we encountered (all ladies) was super friendly throughout the process, and I'm glad we did our landing at Pearson instead of Rainbow Bridge. It was super convenient to have the Service Canada right there onsite, in order to get our SINs processed at the same time. I've also heard a lot of mixed reviews about landing there at Rainbow Bridge in the forum, and the attitudes and behavior of the border officers there. No thanks.
All in all it was a great experience, and I wish the same to all of you here in the forum. Best of luck to everyone.