Hi mate.
I bought in 2020 a 50% shared ownership as it was the only way I would get onto the property ladder.
Pros: low deposit, warranty if it’s a new build and typically a lower mortgage, if bought as a new build, they tend to go up in value and people typically want to buy them when it comes to affordable housing. I was lucky and sold mine at the right time andmade a bit of money a few years later and moved abroad.
Cons: the rent and service charge can go up yearly and they make the outgoing cost similar to a higher mortgage, they can be difficult for repairs if under warranty as they’ll pass the book, when you want to sell, you have to hound them and any losses on their part when selling you have to cover. Also, if you wish to buy the property which is called staircasing it will go against the value of the house in the time you apply to purchase and this will also cost legal fees.
Overall it worked for me however I know some people who also did similar and selling was a real problem as was increasing charges and rent on the share they did not own. Personally, I wouldn’t do it again, but also I’m currently lucky that I’m no longer a position I need to.