Anyone bought a Navigon - Pocket LOOX N100 ? This will be my first GPS, is it worth getting?

I am looking at getting my first GPS - the Navigon - Pocket LOOX
N100. The price is right and from what I have read, there seems to be
a lot going for it in a small package. My main concern is the size -
it is a little small for viewing, but aside from that, has anyone had
any experiences with this unit?

Also, what are some of the things I should look out for when buying a
GPS? What I mean is, are there things that don't always come with the
unit that will be ADD-ONS that cost a lot of money?

Thanks in advance