Marco's tiny home is an adorable little gem. It's right in the middle of busy Prati but feels quite peaceful. My partner and I only stayed for one night, but we wished we could have stayed for longer - it was clean, comfortable, and very well located for exploring Rome (especially as it's one block from the Metro).
The bed was also comfortable and the AC remarkably quiet! Despite the proximity to a little square and some busy-ish roads, it was also quite quiet at night. I would definitely stay again when passing through Rome.