We booked the private transfer that Melany suggested (directly through them) and it was fast and easy. Although, the location of the loft is very close to the 85 bus stop so the public transportation likely wouldn't have been bad.
Melany's friend met us at the loft and explained everything and answered all of our questions. There is a detailed notebook in the loft with tips and hints.
The loft itself is pretty exactly as pictured, but please note the actual loft part is small. I wouldn't recommend it for anyone over maybe 5'7" or someone with really wide hips as they would have a difficult time accessing the restroom.
Location is perfect, walking distance to many great sites. Be sure to check out the churches to the left and right of the loft, on the same road. The one on the right is the one the Pope presides over and the one on the left has a very cool museum underneath!