Because our system relies so much on credit card payments, we haven't exposed an address or phone field on the booking itself. Both the address and phone are on the PAYMENT for a booking. In other words, if you were to open a booking that had payments, you could click Payments and then view a payment and you'd see the address/phone that they submitted with the credit card payment.
However, it is very true that for check-paying guests, this is awkward since you need an address but there isn't one exposed.
We've had a to-do to add (and require) address and phone during the quote acceptance process - right up front before they sign the renter agreement page - but we never scheduled it for development. I will ask the dev team to make that a higher priority.
I know the Notes feature is coming very soon. That went into active development already.
Hope this helps,