The location is superb, you can walk everywhere. The flat was very clean, comfy big bed and great deco.
The only downside is the toilet on the corridor, and the shower in the kitchen, for this reason I will recommend this room to couples only.
Can get quite noisy during the night but I had my earplugs with me. Apart from that, all was accurate and good, the city is beautiful, specially by night.
I didn't have the chance to meet Martina but she answered all my questions by email.