I have recently built and flown the Multiplex Lupo, and can thoroughly recommend this plane for getting started in indoor flying. Several of the people I fly with are considering trading in their Pico Sticks for a Lupo.
I have written a review which is viewable on my website. Go to
http://homepages.tesco.net/~jimead and look in the reviews section. All being well, I'll get to fly this Saturday evening.