Luca's place is wonderful! It's actually huge! Much bigger than I expected as you can't see the large entry way in the pictures. Bedrooms were very big and there is even an "extra" room off of the one bedroom with a pull out couch. It was more than enough space for the 6 of us.
Yes there are some steps. But the other reviews made me think it would be worse. In American terms it's 3 floors up. Very manageable, a little harder with big bags.
A couple things to note. I know some people mentioned the smell. To me it was standard older homes that i've experience in other old towns. It wasn't too bad and opening the bathroom windows while shutting the bathroom door got rid of it completely. Check in has a window from 3pm-7pm which can be tight, otherwise you have to pay. But Lucca was very accommodating for our check out on Sunday.
We were there over Carnival weekend for my birthday. It is a very fun weekend but can be crowded in the center of things. Luca's place was in a much quieter and quaint area just outside the buzz. Perfect to get away from the crowds and feel like you were more with the locals. The bus station is very close as is the train station. It is a wonderful place and I recommend it highly! Luca was very responsive and helpful with tips. Cheers!