A pretty good cruise on the whole, embarking in Venice through to Montenegro, off to Greece's Corfu island, back to Italy for the Rome trip, then to Corsica and finally Genoa for the flight home.
The weather was fine throughout and temperatures never really dropped below 70 deg F.
Saw some fabulous sights from our outside balcony including night time lightning at sea, a moody volcanic island and some fantastic port destinations.
Food on board was good on the whole in the standard restaurants with plenty of choice beyond the staples.
The trips we booked were OK - from the wonderful mountain views of Montenegro to the olive groves of Italy - though they all began to get a little samey. Judging from the comments we have heard from others, the trip to avoid was the extremely long drive into Rome from the nearest port town.
In retrospect I wish that we had researched the trips a little more, and checked out some of these reviews, before we, errrm, took the plunge as it were and booked every single available trip!
The "rest" days, which were days at sea, while enjoyable in themselves, we not sufficiently restful between port trips to recover properly, so I would advise to go it alone more often on the port visits rather than take group trips all of the time.
The evening shows on board, while of a high quality, were really not my cup of proverbial tea. The shows were spectacular, while being mimed, visually stunning while seeing "tap dancing" without taps, so again entirely mimed to such an extent that you kept wandering what it was you were actually being entertained by.
Another slight point of contention with P&O was the penny pinching and up selling you come across on board, all of the time.
An example of the former being when we were sitting down, as a group of six, just before the show and the canapes came round.... but we were ignored because we did not buy any drinks!
Given that we were a relatively large group paying thousands of pounds between us, we felt second class citizens at that moment!
And an example of of upselling is the constant "sales" on board of jewelry, clothing etc in the shops, all at special discounts, though you can easily buy the same things onshore at even cheaper prices (in Euros) that the ship's sale prices (in pounds).
Having said all that, would we do it again? Probably, but with more pre cruise research.