I do, and many others who practice Zen buddhism belive that zazen(zen meditaion) is the real deal. Not to talk down on other meditaion styles, but many other forms are seen as kind of "baby steps". I think that meditation in any form is benificial to oneself. In zazen, you do not sit to attain anything though. You just sit. There is a lot of deep rooted philosiphy behind all of this so I wont bore you too much, because zen is boring enough
At the same time it is very exciting though. Also dont be turned away if this violates your religion. If you are Christian, there are many Christians who sit and do zazen. I have heard a number of preists who do this. good luck in your endevor!