I have the Luvias 1003 and it's an extremely light little reel and very compact. A very good ultra-light reel which perfectly holds 100m of 3 lb mono or fluoro (I use Sunline fluoro straight through on mine). However, I have to say it's not the most silent reel I have ever used.
Apologies, I know it's not the Twin Power, but I also bought the new Stella 1000FD and it is a little beauty. It is noticeably heavier than the Luvias (but still very light), yet feels rock solid, is much smoother than the Luvias and completely silent. Really no comparison in feel, to be honest, but what would you expect at twice the price?
The new Jap Twin Power looks good too.