Hi Roland,
I have just bought myself a 5m beamer, made by HQ.
It doesn't give an incredible amount of lift when on the zenith, so your arms get a rest, but drop it into the power zone and you're off.
It is my first kite and my neighbour and myself have no trouble with control.
It is excellent in very light wind (good for practicing) and pulls me (13.5st) in a good breeze on my Scrub blue reef ATB.
It is also one of the more reasonable kites (£140 - £170 depending on where you look).
I would highly recommend.
Andy