This apartment is in a great location and is very cute-quirky fun! Check-in with Emmanuel was very nice, and he was so helpful. The apartment is a spacious studio, with plenty of room for a couple. The bathroom is a reasonable size, and the shower is large-roomy. Wasn't sure about the round bed at first, but we found is quite comfortable and roomy. The big windows overlook a very pretty courtyard with a pool. We didn't swim, but the pool was immaculate. The internet worked well.
The building is cute and feels fairly secure. There is a (very small) elevator but be aware that there are some steps involved. The neighbors in the building are very pleasant and friendly (we were offered coffee while we waited!). The courtyard and pool are very nice, with beautiful greenery. Perhaps it could use some tables and chairs - maybe we were early season?
As a final, the neighborhood of Trastevere is terrific. More restaurants, bars, bakeries, salumerias than you could possibly visit. Expect narrow old cobblestone streets and much charm. We would recommend you consider this rental.