Thanks for writing this! Getting bcache set up the first time can be confusing, so this certainly helps.
I’ll just drop one warning in here. With a setup very much like described here I’ve had severe data corruption and loss, so please make sure your data is properly and regularly backed up. To me it seemed like almost any unexpected or untimely power off would cause some data loss or significant corruption.
I've had better results than on Google in many cases. Also leaves DDG and other privacy relevant alternatives in the dust.
But, unless you are a power user it's hard to justify the cost. Very pricey.