I have extensive experience with most of the usual opiates including kratom and have iv'ed heroin, oxy, morphine, hydromorphone, oxymorphone, and buprenorphine each plenty of times.. I've used each enough to figure out which ones I like more than others ( while I can't say there are any mu agonists that I don't enjoy ).
Anyway while I do prefer opiates that I can iv, I tell you in all honesty that kratom is by far my favorite opiate by far.. This may be unusual, but ultra enhanced indo is the holy Grail of drugs for me..
I discovered kratom here on bluelight back in '08, and after reading about it for about two hours, I ordered a bag of powdered leaf capsules.. The day they came in the mail was the first day of a two year binge in which I only withdrawaled about 4 or 5 times.. Needless to say I had fallen in love..
Because I was so irresponsible with it my tolerance grew rapidly and I went from taking 4 leaf capsules to taking a few grams of 15x to taking a few grams of enhanced and eventually ended up with a 5 gram UEI habit.. Very expensive!! A couple of months into the my two year binge I told my local head shop owner about kratom and he had it on the shelf in a few weeks so all I had to do to score was walk two blocks down the street.. This made quitting all the more difficult...
Anyway I think if I hadn't gone crazy with it I could have enjoyed kratom on the weekends for many many years but I ruined my chances at a healthy relationship..
UEI is comparable to pod tea in that it contains a full spectrum of alkaloids that seem to hit on so many notes and I think that's why I love it so much.. I found that withdrawals from long stents on UEI were incredably painful and were much worse than those from oxy or heroin.. This might be hard to believe for some of the less knowledgeable opiate fans out there but I have experienced both first hand and I tell you that UEI withdrawals are the absolute worst!
I still occasionally dabble in UEI as I've only just discovered that cimetidine doubles the effect of UEI at least for me but I still have to take at least 3 grams to enjoy it which is still pricy.. I've also found that the tolerance to kratom stays with me twice as long as other opiates which really sucks.
My advice to anyone wanting to use this wonderful drug is RESPECT IT!! Enjoy it but go easy with it and always remember that it is the only legal opiate that doesn't require a script.. Don't make the mistakes that I've made because kratom will be very good to you if you let it!!