IIRC I started using Amazon in 1999, ordering books from them.
I have used Prime for many years and will continue to do so, to a point....
With the additional postage costs now being added for some items that your want a rushed delivery for, under £20, and now adverts I do get to feel that reasons are getting to the point of annoyance with the service that I have enjoyed where it will not take much more for me to cancel Prime.
It is aggregating as they are not exactly on their uppers, struggling with greatly declining profits.
They don't just want my money and be content they seem to want to offer less and yet ask for more.
I would tend to combine my orders to a single shipping day, unless urgent. I would not often use the once free same day delivery for certain items, again unless very urgent.
It seems somewhat one sided.
Even our Alexa's keep trying to tell us to reorder stuff......
They told me that due to my order history that I might want to order a solar panel. I know that I can order some crap but we have never ordered anything associated with one of those..!
Meh