"No problems at all - very pleased"4.5 starson by eweiser
Pros: My phone number transfer was completed before the date they gave me.
Cons: Wish they would add the 212 area code to their virtual numbers.
Summary: Everything worked out of the box. I used my existing phone and the sound quality is great both on my end and on the recipient of my call's end.
Other than wishing it were a bit cheaper, this has been a good move for me.
There were no hidden costs as I talked with cusomter support before signing up and found them to be very helpful.