I've acquired a pretty recent batch of their 'spring blend' and some Red Vein and found the quality on par with G.M.K. and M.K. and Terra. All the Canadian vendors I've ordered from have had moderately good quality kratom. I don't feel the burn much anymore and use this plant more for a mood stabilizer, which is what I had intended originally. The honeymoon phase was nice, but these days I'm more after anything just to keep me functioning.
G.M.K is my current go to vendor and the source of this topic is a secondary runner up. I've found their 'spring blend' to be mildly energetic and a nice way to attenuate my depression that seems to be worse in the winter. Its lost its anxiolytic effect for me though which is disappointing. I alternate strains every few days and the first burn is slightly euphoric, but after that the effects revert back to run-of-the-mill mood stabilization.