Migrate from Sonoff Dongle Plus to ZBT-2 using Z2M

Has anyone migrated from a Sonoff Zigbee Dongle Plus to the ZBT-2 while using Z2M?

What was your experience?
How hard is the migration? Did it take a lot of changes?
How is the range compared to the Sonoff?
Are you happy you did?

I know very little about this so I am wondering if the activity will be hard or worth the trouble if I was to attempt to do it.