Yeah...
Kratom is a miracle plant IMO. Helps TREMENDOUSLY with WD's. As previous posters mentioned, it's a wonder plant that can be used to help get you clean from opies.
The strength varies greatly based on what kind you buy. It can be a bit overwhelming when seeing all the different plants and vendors out there, but once you get into it a bit, you can spot the similarites between vendors. It's usually similar stuff with different names.
A good, plain leaf bali powdered blend will help a lot with the lethergy, sleeplessness, the shits, and more when coming off the ops. There are more benefits with using extracts, a popular one being UEI (ultra enhanced indo) but that stuff can be VERY addicting. I know first hand. Best to stick with the regular blends. If you get into extracts (like UEI), and even for the plan leaf powders, it's great to have a scale. Lot's of vendors sell cheap, $20 scales, and they are AWESOME and IMO essential to measure out a proper dose. That way you can keep better tabs on what you're taking, and take similar amounts. If you really truly want to get clean, a scale helps keep you on a detailed and planned taper...
Hecka long post, haha. But yeah, kratom ROCKS.