You really want to stay in this apartment! I can't say enough good things about Simone's home!
Location: Perfect! A 10 min walk from the train station (and we had 4 bags with us!); less than 10 min to the town center. My wife and I walked the entire town, day and late evening, and felt 100% safe the entire time. Because the apartment is located just a bit outside of the center of town there is no noise at night, so you get a great sleep. There is a fantastic pastry shop 25 steps down the street from his place to grab a delightful breakfast. And the restaurants are all within walking distance of his place as well.
Host: Wonderful! Very engaged and proactive. Simone made sure he knew when we would be in town and gave some great recommendations on things to do in Bologna. He wasn't able to be there when we arrived (he let us know this early so it wasn't a surprise), but his neighbor Emanuela (a very sweet person in her own right!) was able to get us set up as soon as we came to town. She too was very proactive in ensuring she knew when we would be in town and had some wonderful recommendations of her own.
Accommodations: Outstanding! Simone's apartment is extremely clean and well appointed. Everything is in great condition and works well. There is a lift in the building, so no need to worry about carrying luggage up the stairs when you first arrive. At night you have to turn the hall lights on (in the building) when you arrive as they're on a timer, but that isn't inconvenient.
This was a fantastic place to stay with a wonderful host! If we ever have the opportunity to return we will be staying in Simone's apartment again. You should absolutely stay here!