Hi,
I've just recently started playing, and have done some Hanon exerecise -- finished the first book and am halfway through the second (stopped at the scales bit). I suppose it's a good way to get started in the sense that you really don't need to know much about music to do the exercises. And also for a complete beginner you get satisfaction out of being able to play something fast.
However, I must confess that so far I don't think that Hannon actually improved my technique much. When playing a passage or notes, out of context of a piece, I don't really bother much with clarity, evenness, dynamics and touch, although you could make it a rule to try and insert these things artificially, i find that it is easy to forget and just go make some noise. Also the exercise are boring (come on, you have to admit that), and there is not much satisfaction except perhaps the detrimental hypnotic effect it has on your playing.
Nevertheless, technique is still important -- no denying that. Without which being able a to excecute a piece beautifully becomes an impossible task.
I was wondering how all the other people on this forum got to the level that they are at without Hanon or another technical exercise book in less time than they would have playing Hanon.
If you do like the drudgery of Hannon (I can see how that can be fun

) try Bernhard's repeated note groups for passages that you are playing. Particularly on the fast passages.
It is essentially Hanon exercises built for the particular piece. One of the many reasons why it's a fantastic method is that there is a clear goal. The piece you are play already sets the context and you should have a clear idea of the sound you want. So the technique that you learn using repeated note groups is aimed at producing such a sound. I suppose that is partly what people mean by finding technique in the pieces they play.
For example, right now I'm learning Mozart's sonata facile (K545). With this piece, so far I’ve learnt technique of how to play the C major scale in 4 modes (fancy name for something simple), as well as the ascending D minor melodic. Also, there are some arpeggios -- C and G chords and some left-hand right-hand coordination with arpeggios in circle of fifths (i think -- need to check). There is a lot of technique that can be distilled from a piece like this (and there are many such pieces), and so far I've only finished with the exposition (first bit of the first movement).
So instead of doing Hannon, when I get a new piece, I ask what technical exercises I can create out of this piece, and start by doing these exercises. These exercises are eventually incorporated into the piece and lets me play it a lot better.
Now, I'm not sure if I will go back to playing Hannon -- perhaps just to get some ideas for other exercises.
al.