I have an SCS & love it. I was 28 when I got the implant 3 years ago.
Neither I nor anyone I know have gotten off of ALL the meds. However, I was on 15 meds prior to the implant & am now down to 2 meds & am on less than 1/3 of the dose I was taking on each of those 2. It has given me a huge amount of freedom that I didn't have before. It is not a perfect fix, nothing is.
If you need more time to feel comfortable with getting the implant, I would very strongly encourage you to take it. If you can handle waiting longer for the implant, there are a lot of exciting advances that are likely only a few years down the road (one of those is a bio-battery that runs off your body's own energy & therefore doesn't need to be replaced periodically like the current ones do; they also have a new set of leads that is in the process of getting FDA approved which will allow users to still have MRI's done).
There definitely are draw-backs to the implant. For one, I can feel it when I am laying on a yoga mat b/c it presses on my pelvic bone. Secondly, when I have it turned on to the medium level my limbs slightly tremble. It is not terribly bothersome, but it is visible. That does stop as soon as I turn it down to low or turn it off. Finally, it can make my limbs feel numb (like when you sit on your leg & it falls asleep). I am by no means a professional dancer, but I have found it difficult to do latin dancing & certain faster paced ballroom dances when I have my stimulator turned on. It changes how your limbs feel & how the floor feels. I imagine you could learn to compensate for that, but it is something to keep in mind.
On the plus side, I have found that even if I just turn it on for a while before & after activities that I am more able to participate & experience less pain than before I had the stimulator to use. I can block out almost all the pain when I have it on. In previous posts to the Forum, people have asked me why I would ever turn it off. The above paragraph describes some reasons. Personally, I can't sleep when I have it turned on. Driving with the SCS turned on is not allowed under any circumstance. Other people have other reasons to turn theirs off, but by & large I am glad I have mine.
However, I felt I had no options when I got mine implanted & I couldn't stand the pain any more. I did not feel well being on so much medication & desperately wanted to get off as many meds as possible. I was glad I waited as long as possible so I didn't have any regrets once I got it implanted.
If you have any questions or want to know anything else, let me know; but, it kinda sounds like you've already decided what to do.
best of luck with your decision & wishes for many happy years of dancing ahead!