Diamantino Town House hotel is a great cheap comfortable place to stay in Padova IF you can climb stairs and carry your bags up them for several stories. The location is fantastic, but a bit difficult to get to because of restrictions in the old historical part of Padova. Still, a taxi can get you there. In addition, you can park a few blocks away, 5 minutes walk. The train station is too far away to reasonably walk from.
I was disappointed not to have a room with a balcony facing the square the building is on, that was the thing that tipped me in favor of this hotel as I thought all rooms faced the square. But when it is all said and done, I may have been better off at the back as the market in the square starts setting up pretty early and that can be a bit noisy.
Overall, the room was clean and comfortable, the internet worked (something that is hit and miss in Italian hotels). The breakfast at a cafe at street level was authentic, but Italian breakfasts are not much. I'd definitely stay there again if I were in Padova. For the price, it is an excellent deal.