SUPERB EXPERIENCE! Incredible location (you feel grateful you are on the other side of the river from the tourist madhouse, yet you're literally half a block away from it), wonderfully comfortable and perfectly clean apartment, great bed, nice living room. Baby cot was available for us, and Guido got it set up at the moment's notice.
Guido is super friendly, useful, knowledgeable, available, helpful - just a great, great host!
Only one complaint: slow internet. Line speed needs an upgrade. It works, it's always available and it's fine for regular use, but it's pretty slow and large downloads often get dropped (e.g., I was trying to download a few MP3 files of a walking tour.)