Yes, according to many users of this device, Facebook Portal does in fact provide an excellent experience when it comes to video calling through Facebook Messenger and Whatsapp.
While many consumers have countered that the Amazon Echo Show and the Google Nest Hub are superior in some ways (for example both have better Voice Assistants and are less expensive), Facebook has a certain edge with the huge amount of potential customers who use Facebook Messenger and Whatsapp regularly.
The Facebook Portal device makes video calling that much easier and more convenient for the average user.
Mentioned in this answer
Facebook Portal
Smart, hands-free calling, with Alexa built in