Frank was very welcoming and responsive at the check-in. The room was perfect for my short stay with a beautiful view from the window. While you can hear the next door room from the exterior bedroom (e.g. if they are playing music out loud or someone talking) it was mostly quiet in the evenings, as the windows shut out the street noise very well.
I would highly recommend Frank's for travellers that want to be central to the metro, other train links, and popular tourist destinations.