I have an older toilet, and the flapper doesn't stay up to allow the toilet to flush. I am pretty sure the other posts are talking about a newer version of the insides of a toilet where as I don't see any hooks for the flapper.
The chain is where it should be a little bit of play but not too much in it. I just want to flush my toilet without having to hold down the handle till it finally fully flushes. Ugh!