I might add something for having tried a number of their teas, a sample set. The oolongs were particularly interesting, along with that sheng being novel:
http://teaintheancientworld.blogspot.co ... long.html
Indian oolong never really seems like oolong to me, but I don't get too hung up on another mid-oxidation level style reminding me of rolled oolong, Wuyi Yancha, or Dan Cong, or else not seeming like those.
The only trade-off related to Ketlee's teas is that for sourcing very rare, novel, under development versions you end up paying more than Indian teas typically ever cost. Those are all on the order of 50 cents a gram, or maybe only 30-some for some, and you could buy really good Indian or Nepalese tea for $100 per kilogram, or less, if you figure out other kinds of sources. Budget issues are different for different people though, and for some an extra $70 or $80 order is not a concern at all, while for some people they don't get to place that many of those in a year.
Supporting vendors who develop new types and sources of tea is kind of an important thing though, not the same as an established online vendor bumping prices because story lines will support it. Real extra cost couples with having local producers change sourcing and processing styles.
A second vendor doing this kind of thing comes to mind, sourcing interesting Indian teas from small producers, so I may as well mention that here too:
https://www.tealeaftheory.com/