I have been curious about pu erh paste for quite a while now. It seemed like it would be bad, but hey, I’ve drank bug shit tea, so why not. It was actually interesting and not bad. The way I did it was to dissolve one tiny piece in about 50 ml of water, let it sit for a minute, stir it up, drink, then repeat since the little chunk dissolves slowly. But you can probably just let the whole thing dissolve in a larger amount of water and wait. One tiny piece can easily make 6 oz of tea.
It basically ends up tasting like a decent grandpa style shu drink. It was way smoother than I was expecting. Very easy to drink, and of course convenient. It’s akin to a high quality instant coffee – not as good as the real thing, but pretty good overall.