Daniel's place is a great option for a stay in Rome. It's located about a 10 minute walk from Tiburtina station in a good residential area. It's on a side street and doesn't directly face Via Tiburtina at all, so noise is no problem. There are restaurants, grocery stores, and laundromats with a 5-10 minute walk.
Access is easy - just a few stairs. Daniel's mother met me at check in. Daniel and his mother were very nice and accommodating for the fact that I was late to check in due to me having missed the train to Tiburtina! Daniel's mother speaks wonderful English and showed me everything in the apartment, including some small idiosyncrasies like how to operate the window shutters smoothly and how to light the gas stove in the kitchen (thank you, Daniel's mother!).
The apartment is spacious and consists of a sitting area with a small couch, a kitchen with refrigerator, stove, and cutlery/dishes, a breakfast nook with barstools, a bathroom, and a bedroom.
The kitchen is fully equipped and perfect for if you're brave enough to cook! The bathroom has a toilet and bidet (sometimes you have to press the button to flush the toilet a few times). I never ran out of hot water in the shower during my stay, which is great!
The bedroom is large and has a writing desk. There are tourist pamphlets and books (although most are quite old...might be better to online), and plenty of storage for clothes (closet with hangers as well as pull out drawers).
The bed is comfortable and large - I'd say at least queen size. I had no issues with the pillows, either.
Daniel was very quick to reply to messages, and is very friendly!
Finally, the only potential issue is the wifi. Signal is okay in the sitting room and kitchen, but not great/non-existent in the bedroom. Not a huge deal, but it means that if you're relying on wifi to cut down on international data costs, you'll probably have to do most of your web browsing while in the sitting room near the front door. Just a small adjustment to make.
Also, because the wifi router is in another apartment unit, it's also far away and so the internet speed was a bit slower than in other parts of Europe. I had some issues when trying to complete a time sensitive work assignment. All in all, it's fairly useable, but not perfect.
Overall though, Daniel and his mother's hospitality along with the good amenities and location make this a good place to stay in Rome, and a tremendous value for the money! Just be careful if you absolutely need fast, strong internet because you may not have it fully here.