I have had the pleasure of putting the 12m thru it's paces in the last few days. I liked it alot. It has a great range and great boost and hang in the right wind.
I have come from riding Rhino 2's and a Rhino 4 for a brief stint.
These spectrums have answered all my prayers for a grunty kite, awesome lift and hang, easy relaunch and a much better range than the Rhino 2. I am sold and getting a full quiver after trying many brands from 04 in the last few weeks.
The X4 sounds good too but at twice the price not even worth a look imo.
The Best Nemesis was good aswell but not as well contructed as the Liquid force gear and at the same price.