After however long it has been since the RSST came out, I finally got one and must say it is a huge improvement over the old type-R genesis style atty. I bought 3 type-R attys when I first started rebuilding and now that I am using the RSST, I look back at how cheaply made they were in comparison. For anyone as behind as I was or a newbie just getting into gennys here is a good RSST article with all the info you could ever need. Don't get me wrong, I have used and do use quite a few tanks and drippers, it just took me forever to get the RSST. If you are just starting out I definitely recommend the getting one. It is pretty straight forward, not nuts to drop and never to be seen again with a spring instead. I do like that they included the rubber stoppers from before, I think it had one installed and 2 in the spare parts bag. The brushed stainless and smooth finish are also a definite improvement over the chrome plated brass. So as I said a moment ago, if you are just getting into rebuilding or haven't gotten around to picking up a RSST for yourself I definitely recommend it! Not sure I feel the same about this Rainbow Elite I just got ... lol.