So I wanted to post on here that I have successfully did my flag pole at Fort Erie on Tuesday July 27th.
I booked a motel near the border called: Haven Motel.
My trip: Union station (Gotrain) -> Burlington (GoBus) -> Niagara Falls (Uber) -> Fort Erie (On foot)-> Peace bridge
They only take about 30 applications/day at this location so it is recommended to be at the border early. I travelled with my friend, and we woke up at 6h30. By the time we got back to the Canadian border (After having breakfast and a 40 minutes walk to and back from the bridge) it was almost 8:00 am which is the time they open for flagpole process.
It seems that each application would take approximately half an hour from the time you submit your passport until you got the PGWP. Officers seem nice and chill. One of them even asked my friend if 3 years is enough for his PGWP

)
Documents that I brought with me:
Study Permit (Must be valid for re-entry)
Letter of confirmation of graduation
Diploma and Certificate (I did two 8 months programs)
Official Transcript
Passport
IMM form (they did not take it)
Letter of explanation ( To explain to the officer why I need a 3 years PGWP cause in some situation, people only got like 1-2 years)
Payment is $255
If you have any question, please let me know!!!
I hope that my post could help you to have a successful flagpole in the future as well!!!