I've tried epistane, but didn't really notice much from it.
The only difference between steroids and designer steroids, is that designer steroids have never been produced by a proper pharmaceutical company at any time, whilst steroids were (at least at one time) available for prescription by a doctor. They all occupy a similar legal grey area in the UK, which the police don't appear particularly concerned about.
Superdrol definitely works, but I've never tried it myself, because there are steroids which are as effective, but have less side effects. I'm a chemist, and I like to know what I'm taking, without loads of hyped up american-style pseudo-science, fancy names, or reticense about the active ingredient.
I still say, if you liked the 1-AD / 4-AD stack, you will probably like turinabol. It's not quite as cheap as dianabol, but it's still cheap. I paid more for 2 bottles of 1-AD than for my Tbol and a 10ml vial of testosterone cypionate. However, the 1-AD could be purchased online with a card, wheras most steroid sites you have to pay by western union. You always think you're going to get ripped off, then your exotic pills and vials drop through the letterbox, airmailed from Moldova or in an envelope from Southend on Sea.
You can get anything on that internet, this is the best time ever to be alive. No need to get steroids from a scary man with a thick neck at the gym, it's a buyer's market with loads of choice, and hundreds of websites trying to outdo each other to give you everything you want. You can read all the research, and read people's actual experiences on forums like this, even better than you can with "legit" pharmaceuticles.
I've found out that most bodybuilders aren't meatheads, but men of science, using mind over body to get fitter, stronger, faster, or just sexier. Usually, if bodybuilders use something, it actually works, rather than being some snake oil marketing fad.
1-AD was one of the prohormones which was made as illegal as steroids in the USA. so companies stopped selling it. The one I use, which always arrives within a few days (so i assume it's british) has worked very well for me.