I can't recommend Marco's place enough!
It is in such a great location surronded by restaurants, bars and (amazing) ice cream. All of the major sites are walking distance and it's not far from public transport if you prefer.
Marco was amazing for giving tips and was so helpful in helping us organise our trip. Crucially, he was always quick to respond and very friendly when doing so.
It is 5 stars across the board from me - thanks again Marco!!