The ol' "fluency" vs. "accuracy" argument rears her head again, eh?
Well, Lenko, my feeling remains that it's fine and good to want to "feel" a language etc.. , in some sort of '60's kumbaya-type atmosphere, sitting around a bong and getting gently high on life. However, all the feeling and even positive enjoyment in the world (not that I'm knocking that, by the way!) can never truly replace old-fashioned, solid study of the basics:-)
Sure, your way is great for all of us enjoying the feeling of speaking a foreign language, however, for me, I'd prefer to sound a little naturally halting at first, and yet enjoy getting it right, instead of sounding like an eternal illiterate, feeling their way around verb tenses, (did I utter that four-letter word G-R-A-M-M-A-R - horrors??!), merrily, unconsciously making an ass out of myself in the process!!
It is still possible as well as preferable to sound casual, intelligent, yes even, correct, in another language, while not sounding boorish or vulgar either.
I'm a language teacher myself and I'm all for mnemonic devices, games, songs, puzzles and the like in order to make learning "fun". Truth is though, sometimes learning ISN'T fun, it's hard work and adults learning a language such as Polish, German, Russian, Finnish... need a fundamental structure to their learning.
On the other hand, whatever floats your boat!