I used to be really into kratom a couple years ago...back then most people I talked to had never even heard of it, and that's still mostly the case today, although I think it's gradually becoming more popular through online dealers. It's an amazing, potent herb... I'm still dumbfounded as to how it's completely flown under the radar for so long... but hey, I'm not complaining, haha
My advice... kratom is actually kinda expensive. If you try a sample pack and find you enjoy it... buy in bulk from then on (ounces or lbs instead of grams), you'll save quite a bit that way. Also, my personal experience is that kratom is best used sparingly... maybe 2 or 3 times a week at the most... any more and it seems like its effectiveness is diminished. You can build a tolerance quickly if you use it often.
I enjoyed it most using it as an occassional "change of pace" from my normal bud smoking... and it's perfect for that. It's also fantastic WITH bud too, but if I'm running low on my green, or I wanna conserve, I could simply have a little kratom and thoroughly enjoy the rest of my evening
As everyone says, yes the taste is awful, but you get over it if you use it semi-regularly. I found that mixing it in ice cream or milk shakes almost completely masked the taste... chocolate syrup works wonders too