Is it bad to be an only child?

[MissCommando]

As you can see, I've got a little girl (aged 3) and we absolutely love her to bits. She was very hard work as a baby (colic and a terrible sleeper) which caused me and my husband to argue a lot.
Everything is great between us now but I'm not sure I'd want to go through it all again. I know not all babies are hard work (don't get me wrong, I know babies cry etc) but I don't know if I could cope again.
I am still young/ish, I'm 23 and my husband is 27 but we're not sure if we want another child. I know she'd probably love a brother or a sister, she gets on so well with her 2 year old cousin.
At the moment, my husband can't work due to a health/mobility problem. We're not sure if it will ever get better so obviously that puts us off having another child. I'd also hate to have a huge age gap. So what I'd like to know is: are any of you an 'only child'? Or do any of you have just 1 child? If so, what's it like?
People often say to me "Don't just have one, cause only children are spoilt brats".
Thanks

[DEN53]

Miss C. I am an only child and hated every minute of it. I definately was never spoilt though when people find out you are an only child you do get the 'Oh I bet you are spoilt rotten'. it really makes me mad. You feel like you have apologise for being the only one.

I also only have one child, a son aged 20 - it was not by choice that he is an only child but I could'nt have any more kiddies.