I was prescribed tramadol at 400mg/day one month after I quit methadone. It actually made some symptoms a bit worse and helped very little for other ones, all in all it wasn't worth it and I had to start taking Suboxone. And I used to get very good effects from relatively low doses of codeine before I developed tolerance, tramadol is metabolized to desmethyltramadol by the same enzyme that metabolizes codeine to morphine. I didn't really take tramadol when my tolerance was still low enough for me to have strong opioid effects from codeine, so it might be that, but overall I guess I never enjoyed tramadol due to awful serotonin and noradrenaline related effects. I would always get very nauseous on tramadol while I never experienced any nausea on morphine-like opioids. It's a weird high, quite stimulating but at the same time very dull, opioids usually made me very motivated and productive unless I took high doses to nod out, tramadol never had those positive effects of classic opioids for me though.