Staying at Gianni's place was the best decision for us. The apartment is spacious, warm, with comfy bed and big sofa. Big plus is that there was very quite inside, no street noise disturbed us. Location also is perfect: it's about 15 minutes walk from main train station and 10 minutes to metro station where you can take a train to Pompei.
Gianni itself was very pleasant and helpful, communication was easy during all our stay. And also we received bottle of wine like welcome-present ^__^
I can definitely recommend this host :)