Will the High-Rich 2 Hydrogen Water Machine I am looking at be an effective and reliable source of suffused hydrogen I can add to my drinking water on a daily basis?

This will work just fine for you. It will be reliable and will be long-lasting and if you do a rinse out after each use, it will stay functioning for a good long while. It will perform as advertised and this will be a great benefit to you, both to have the black tea constituents and the hydrogen suffused water on an ongoing basis.