I stayed here with my two kids for nearly two weeks and found it very well located for nearly all we wanted to do in Rome.
If you're wondering about location, we used this as a home base and walked nearly everywhere (Pantheon, Spanish Steps, Trevi, Colosseum, and more.) Most things are 20-45 minutes away on foot. And when you get back after a long day, it's far enough outside of the tourists areas that you can relax in the air conditioning.
The Terrace is a great place to grab a glass of wine but it gets a LOT of direct afternoon sun (4-8pm - July).
Since we're we were there a few weeks we sort of live like locals. Within a 3-8 minute walk you can find: an amazing coffee shop, a grocery store, a pharmacy, a number of good restaurants, one of the best gelato places we found, and one of the oldest wine bar's in Rome.
If you happen to be there in a heatwave like us (>40), there is also a pool you can pay to access about a 25 minute walk away.
So why only 4 stars?
Well there are a few reasons that were likely specific to our stay and hopefully are resolved before yours. For instance, the washing machine (which we need as we're traveling for a month) was broken flashing error messages across the screen (while keeping the door locked) and the address listed was close but not quite the right place (which left pre-arranged transportation needing to be updated and corrected). There are a few other things that I emailed Natalia about privately as well.
Natalia was responsive and helpful when I reached out.