> you can be reasonably optimistic that it won't have any horrible usability bugs Or alternatively, since they are the ones also building it, they intimately k

> you can be reasonably optimistic that it won't have any horrible usability bugs Or alternatively, since they are the ones also building it, they intimately know it's (undocumented) pitfalls and how to work around them and/or they plow through bad DX with a horde of engineers that only a big corporation like them can afford. Dog-fooding doesn't automatically improve a product.