While I've never used Google's toilets, cleaning your asshole using a water spray is usually accomplished by a bidet. They're somewhat common in toilets in parts of Europe, and quite common in Japan. It's preference, but people usually like them.
That being said, if the toilet component sucked then the whole experience will suck. I just wouldn't discount ass-spraying toilets from one bad toilet.
EDIT: Almost all the toilets with bidets I've used have also had manual flush options, although the UX is hit or miss.
That being said, if the toilet component sucked then the whole experience will suck. I just wouldn't discount ass-spraying toilets from one bad toilet.
EDIT: Almost all the toilets with bidets I've used have also had manual flush options, although the UX is hit or miss.