Yes... It has always been useful for me. I hated opening a really messy diaper on the couch floor or anywhere else then having to clean that area like crazy when I could have just cleaned a changing table pad or the sheet on top of it.
Nope. You'll find yourself changing your baby where it's most convenient. I change my girls diapers literally everywhere in our apartment. I'm not going to walk to their nursery just to change them on the changing table lol
We were given one and used it more often than not so if you can get one for free or close to it I would say go for it but for full price my opinion is don't bother
It wasn't for me I used it for storage lol well my changing table was my sons dresser with the attachment
To clutter stuff on top of it! 😂