The two of us had a lovely stay in this quiet villa. The garden is absolutely beautiful and the villa is a really good size, particularly just for two. There were mosquito nets on all the windows and the door, which meant we could sleep with the window open at night. We stayed at the end of May, intentionally for a walking holiday but it was quite hot, so we only managed three walks in our 8 days there. There are bicycles to use to cycle the three minutes to the beach, where there are pine trees should you need the shade. The sea was warm enough to swim in - I thought it would be much colder in May. We had a hire car, so could sightsee, and although you could cycle to Orosei, it is a few miles outside along a country lane, so you might not want to cycle home in the dark. There are really large quarries outside Orosei (we called it "Rock City") but it didn't impact on us down in Osala at all. The only time we remembered about it was when it rained and the chairs were left very dusty.
The local restaurants weren't open when we were there, but looked to be opening soon.
I was a bit concerned in case there would be a lot of mosquitoes as some web-sites advertise the area as a "swamp". This is not the case. Yes, there is a lagoon at the bottom of the lane (which can't be accessed from there, you have to go down the road a bit for that) but there were no more mosquitoes there than any other hot place I've been to.
There are a couple of dogs around that sometimes bark, but even they are quietened sooner than dogs elsewhere.
We had two new sunbeds provided, which were great, and the outdoor shower is both hot and cold, so you can cool down slowly, should you wish. As per most properties in Sardinia, there are no such things as kettles or teapots, so you have to heat your hot water for tea in a saucepan. (A coffee machine is provided.) I could have probably done with a couple more serving dishes, but that was a minor issue.
All in all, a delightful place to stay, and I'm sure we'll be back.