Yes, I've had items sold by Amazon, ship from their own facility, after waiting 4 days to ship even though it was in stock, only to have it relabeled and delivered late by UPS. Ive had items that said next day turn into weeks just after I purchase. Atleast sometimes you can cancel and rebuy for a better delivery date.

Ive gotten the feeling that Amazon doesnt actually know how to do final mile delivery properly, especially considering how much money they waste by sending 4 different vans to my house within a single day