We have stayed in the Osiris twice now and cannot recommend it enough!
It's a small, family run hotel and the staff are very friendly and welcoming.
The pool area is very clean and although it is relatively small we have never had any problem finding a sun lounger!
We never ate at the hotel so couldn't comment on the restaurant.
The Osiris is ideally located at the start of San Antonio Bay and is a ten minute (max) walk along the promenade into San Antonio. The hotel is very quiet during the day which means after a hard night clubbing you are guaranteed a good nights sleep!
The rooms are fairly spacious and although nothing spectacular decor wise, they are clean and comfortable.
On both occasions we asked for a top floor, sea view room and this was granted. As the hotel is right on the front you get a lovely view and can watch the sun set (or rise if you're just getting in!)
Highly recommend and would rate it more of a 3*!

the hotel osiris was a great choice, staff were brilliant, rooms were cleaned every day, food was good plenty of choice at dinner, breakfast was ok but not much choice bacon beans, egg, would have been nice if there was scrambled eggs on some mornings, although i think it was catered around the german and dutch guests. there was 12 of us at the osiris, we had a 3yr old with us but no kids pool, that was the only draw back. it was agreat location right next to the beach, we couldnt believe it was a 2 star! they even let us have one of our rooms to get showers and cases kept on the day we were leaving, we would definitly stay at the osiris again! great 10 days there!

After reading some bad reviews about other cheaper hotels in Ibiza, we were unsure what to expect from this hotel but we were very pleased to find it surpassed our expectations. The hotel is not very big but rooms were tidy and ours was a very good size. From the pool you can see down to the sandy beach and location wise you are in an area that is quiet enough to be away from the nightlife but also close enough to walk to within minutes. there is a supermarket literally over the road too. I would definitely go back here as its suitable for couples or groups of friends. We did not eat in the hotel so I cannot comment on that but there was a fridge in the room which was useful.

This was my first time in ibiza booked with jet 2. Stayed at. Hotel osiris in san antonio bay .please book this hotel it was one of the best 2 star hotels (should be at least 3.star) i have been in the staff were very friendly.the location was spot on food very good stayed on halfboard.