Basically yes.
You get your money back when you sell much like a normal house but even then selling is a pain. Everything has to be approved by the housing association.

Also most will be mixed in with council propertys (before i get slated i know all council estates aren't bad be tbh most are) We didn't know this and were told the new estate was s/o and private rents which is why we got stung when the gypos arrived.

We had a 40% share and the rent was something like £318 a month. Oh yeah forgot about that. The rent goes up each year too. The scumbags kept that one quiet! And a small 24k mortgage which was £150 a month.

We paid 95k for our share. Due to how the area went and it was overpriced to start with sold for 47k. We got that desperate.
And after all the debt we racked up running two houses(we had to move for saftey reasons) we got a massive 3k back.

So not a happy s/o experience.