We arrived first of all to this place just to have a look and we fell in love with the places for tents. Ended staying there for 3 nights. It was so perfect - each tent is far away from each other, toilets were cleaned 1-2 times a day and were really clean. The water was so warm and the beach is excwllent. I understand that the cabins are not very good, but if you are going for camping - this is the place were you can camp in the beach, looking to the sea and enjoying beach playground for kids. Also place has good free wi-fi next to the bar. You can hang in the hammock and do some browsing.
And the place is really cheap - only 7€ for the tent per night, plus 3€ for parking for the whole stay if you want to park next to the tent. Shower is 1€ 5 minutes.

Booked 3 nights. Hardly survived one. First cabin changed right away. Second one was a bit better. Old cabins have awful smell, bad beds. Bed linen was cleaned but not clean. At receptions the woman spoke neither English, Finnish nor Russian. They used some substance to clean toilets, after one night in the campsite all our clothes smelled terrible. In the cabin for 5 people there were 3 stools one table and five beds, nothing else, There was no even hook to hang a jacket.

Stayed at Mändjala for two nights. The location itself is quite good and it has a beach just seconds away which is pretty clean.
The biggest letdown was the camping houses as the one we stayed in had filthy curtains which looked like dried blood and the windows had washed like never. The door nod was falling off and the door in general was filthy. A mirror would have been nice to have in the house as well.
The restaurant that is part of the camping area is pretty poor too. They had no chilled cider and when we asked for seconds they had ran out of almost every cider (mid July, high season). The dinner menu is very limited and has only few options. Not sure if this is normal for camping areas in Estonia as I’ve never stayed at any other. The brekkie was pretty good, small but you had your typical brekkie stuff, cereal, boiled eggs, toast, fruit, yoghurt, sausage, coffee, tea. Enough if you don’t require huge varieties of food which I would guess majority of us don’t.
I would stay again due to location but would hope that they will pump up the cleanliness.