So far the only public review you can relay on is that the public has not reported having their money stolen from the standard client, despite of all the incentives behind it.
Only tiny Android wallets were robbed so far, but that's only because Google added "even more bugs" while fixing one in Android's RNG... allegedly - they made a seminar about the details of this incident, but it was only for a high profile scientists
Which doesn't mean stolen coins won't be reported, for the standard client, in a future - just wait... the great new versions are coming, right from
Google's best security experts.
I already have my popcorn bought and waiting to be heated