I hated it because I never got any parental attention. In saying that, my parents weren't cruel, we all had our own bedrooms and space (we lived in a big house so that was possible) and I never had to mind younger kids unless I wanted money, then I could make it by offering my babysitting services.
We always had friends in as well so there would be a lot of people coming and going. Eight children plus friends and a constant stream of my parents friends, that would drive me insane now but it was great as a teenager. I could do whatever I wanted without ever worrying that my parents would notice.
I love a couple of my sisters and am close to them, unfortunately they live on different continents so only see them a few times a year. The rest of them are a bit odd, I can take them in small doses. Some are extremely spoilt, lazy and immature because they've never had to be responsible for themselves, the parents are still caring for them in their mid to late twenties/early thirties 
I see my parents a lot more now, we get along well and they're very generous and thoughtful. Christmas and Easter are huge gatherings and we can bring whoever we want, all welcome, it's great fun.
That's not a life for me though. I like my own space. Dd will remain an only child, I've no interest in any more. I like that she has my full attention, she won't get into any of the trouble I used to cause, she will have constant guidance.