I got my Lx-6 at this years ice show (from an FL-8)and have used a few times. It is awesome. I will say that the 6 is a great size in a portable, but if out on the ice standing, I could see the need for a bigger screen.
JMO
Imo it is. I think you would regret it if you bought the 6 instead of the 7 if you can afford it. I bought the LX-9 3 years ago and love it. My wife also loved it; so much so that I had to buy one for her.