My parents went there for two days for the Venice Marathone, all was fine very clean and very well organized especially the breakfast.
The only problem is that you have to leave the bedroom at 10 am and it's not possible to leave the suitcases thare until the departure from the city. So my parents had to leave the bedroom at 10 am and paid for a suitcase deposit in the train station that is 5€ for suitcase for 5hours. So if you are not leaving the city aerly in teh morning you have to take into consideration this extra expense.