Excellent location: walking distance to Vatican museums and St. Peter's basilica and metro station. Convenience stores and supermarkets are also easily accessible. Nice restaurants in the vicinity too.
Fully equipped: full kitchen facilities enabled us to do cooking. Bedrooms were comfortable and the space was sufficient for our family of 4 adults and 2 children (4 months and 2.5 years). 1 collapsible cot/playpen was provided when asked. (We had to bring our own cot linen.)
Check-in and check-out was hassle-free. A lady named Mrs Claudia explained everything clearly. Mr Sandro remained easily contactable via whatsapp especially when we didn't know how to operate the cable tv initially but figured subsequently.
Others: ottaviano metro station had no lifts, only stairs and the lift was quite small and manually operated in the apartment building... this made our big luggages a challenge to transport. But strong men or lighter luggages should have no issue with this.
Will highly recommend this apartment for a big family especially with children!