Yes that is a ver good assessment. I had a very close friend bought it yesterday and I asked him in detail about everything like:
* Controller responsiveness
* Motion tracking precision
* Fun factor
* Number of times to calibrate.
Overall his impressions are very positive and he did note the 1:1 motion tracking in games like the gladiator fight, which seemed to be a blast.
So overall that seems to agree with your impression. I would recommend to PS3 owners though (who do not own a Wii) since playing the few games like Sports Champions, Ecochrome, Tumbe and RE5: Gold will be a lot of fun IMO.
I am going to pick this one as soon as I can
It is better to die on one's feet
then live on one's knees