We have the Perkl-Light now for some time, and do use it everyday.
It really is benificial, and can help a lot.
Especially the extra LOOP function is very handy.
See:
http://www.hetbitje.nl/phpBB3/viewtopic.php?f=2&t=668The best machine we have ever bought is our *Brains Machine*.
The LRIS is the best buy, value for money.
See:
http://www.hetbitje.nl/phpBB3/viewforum.php?f=2and
http://www.milieuziektes.nl/Pagina305.html