Giuseppe was very kind in helping us to find the place and explaining the appartment to us. It is on the 5th floor of an appartment building (22 floors). The building has a lift so no worries about that. The appartment was very well set out, very clean and tidy and has everything you need.
We ( two women) had a very enjoyable stay. However I would point out that it was a little noisy ( on a busy road and also opposite a number of railways lines ) so we couldn't really enjoy sitting on the terrace and also leaving the windows open was not really so great.
We were about 500 metres from the Garibaldi railway station so it was easy to walk there to catch trains to Pompei or the underground to move around the city if necessary.