First - let me state the the FIOS service is fantastic. However, not perfect.
Tried to order Quantum upgrade using TV remote. Got all the way through - then bang - error. However, this did not stop the system from generating an order number, a UPS tracking number( nothing acutally shipped), and an email telling me of the order number, and giving me 30 days to return the old equipment.
I then went on line to check order status. Got another error message - Order not found. Had to call support to try to get issue resolved. Had to have order cancelled, and recreated by support.