Well I have a neutral standpoint with Character sheets but I'll give my opinion on it.

I do like the creativity of them and to be able to be used but I also do like to wing it without them sometimes, I do know in groups some GM's would likely prefer to use them and my concern with them would them restricting people who use them to just that when it is not the end all.
But the idea of CS's being a starting line is not too bad about it but when people try to restrict you to them is where I have a problem with that so that's my stance almost to a like-hate kind of feel to them.