We enjoyed our 14 nights on Oriana.
Really wide promenade deck with traditional hardwood base and you can walk all the way around the ship on the same level.
The conservatory self service restaurant serving decent quality breakfasts, mid day meals 12 noon until 2.30p.m (try the salad bar). The conservatory also serves evening self service meals with a smart casual dress code if you ever wish to miss one of the formal / semi formal nights in the main restaurants.
We did this one evening and had the best meal of the cruise.
The Lords tavern pub has an easy going feel to it. Stella / Carling lager on draught at 3.85p a pint. A good range of bottled beers also available. House recommended wines - we found good!
The Terrace bar deck 12 Aft, is a lovely place to sit with a drink during warm evenings and watch the sea behind you.
The Spa - With its mixed large Sauna, also steam room and well equipped gym. First cruise i have been on where all equipment was in working condition.
As we did 'freedom dining' gratuities were added to our onboard account. At the end of the cruise no staff (cabin crew or restaurant staff) acknowledged that they were aware we had paid. Or said thanks. We were very much aware however that they were looking for extra (cash). If we do another Oriana cruise we will do second sitting, cancel gratuities on first day, then pay in cash on last day to the staff we feel deserve.
On a 14 day cruise there are 4 formal nights and 4 semi formal. Thats 8 jacket evenings for a gent.
I prefer the 4 formal and 10 casual that exists on other P & O ships. Especially on a July / August warm summer cruise to the canaries.
The conservatory self service restaurant - I think that its too small for the number of people using it during busy periods. Plus there are too many people not leaving their table when finished eating. This leads to a sense of frustration which you can see in many folks manner and behaviour.