Migrating from old MacBook Pro (2015) to new MacBook Pro

onmyown wrote:

Migration Assistant still "Starting Up" after an hour and a half?? Transferring via wifi. Is this going to take all week?

Quite possibly.

You are always better off with a cable connection moving large amounts of data.

The most trouble free way to move to a new machine, is using the Setup Assistant on the initial boot of a brand new machine— you have one shot here. https://support.apple.com/en-us/HT205749

The second best way is use the Migration Assistant.

How to move your content to a new Mac https://support.apple.com/en-us/HT204350

onmyown wrote:

Finally migrated using Time Machine Backup of older mac. Two macs never would communicate. Apple used to be so intuitive. I've been using exclusively mac for over 25 years. I was always able to migrate one laptop to the next with no issues...old and new both had ports that allowed them to connect. Thunderbolt is great, but the non-apple, non-leading edge world still uses other types of connections.

you can submit your Apple Feedback http://www.apple.com/feedback