Wow.  Are you looking for a pan that does not leave a crumb behind.  This is the one.  I replaced a very popular household named product because evenly fairly new and not over used it made by bake goods stick  No matter how I prepped.  The first cake I baked both my husband and neighbor both said it was the best cake I have ever made.  And, these two guy will eat my apple cake seven days a week, if made them  .I was so impressed I told my mother in law about it (she is the family baker) and she had me order her one.  (Wayfair shipped direct to her address)  She liked it so much she ask me to order another.
There cannot be higher praise a she is very conservative on her purchases, cares for her kitchen items so they last for years,  and does not to change the things she likes to use.  Not one but two of these for her.