This is their second recent article about linux laptops, and I have seen no mention of battery life. While its nice to have a 15% faster OS, I would also like to know how the battery life differs between various distros (and Windows).
In practice it works really nicely for what I use it for. A temporary portable computing device that isn't my main workstation but still gets a lot of use.
[0]: https://nickjanetakis.com/blog/transform-a-toshiba-chromeboo...
One thing that it often works against is latency, because it takes time to wake up things that are sleeping. But that is really not something you should care about if you're using a laptop. Your laptop is not servicing Google search results.
const char doc[] = "Power Tweaks -- adjusts runtime kernel options for optimal power and performance";