I cannot speak on whether they are or are not a good place to hand in waivers since that is not my area of the country as you would know about those borders better than I would.
I can say that Detroit Windsor is the worse border to use in terms of crossing over and Sweetgrass Montana is the 2nd one. Way too many people have contacted us with horror stories about Detroit Windsor and even Niagara in terms of crossing over. Anyway, just my opinion based on what clients have told us.
I believe that Niagara is Buffalo?
What about Lewiston crossing? Would you consider this a quiet border?