Although I'm personally not _as_ bothered by 5, the rest of these are spot-on. The other big annoyance for me is the inability to use anything other than string

Although I'm personally not _as_ bothered by 5, the rest of these are spot-on. The other big annoyance for me is the inability to use anything other than string as an object key (numbers, for example, but others would be interesting/useful too I guess).