I looked at Reactor Panel saddles and then bought a Free n Easy. However, I didn't get on with the Free n Easy and switched to treeless. That was 8 years ago and I recently saw the new Free n Easy saddles at the Golden Horseshoe ride, they are nice but very heavy. What sort of riding are you doing?
The FnE's are very popular in the endurance world... I know lots of people who use them and love them. FnE are a great company to deal with and Les Sparks the owner can't do enough for you, including traveling the length and breadth of the country doing fittings.
Personally the only flexible panel saddles I've used are the Ortho-flex's (they were the original flexible panel saddles) and I wasn't keen. Really heavy and they blocked shoulders and rubbed the loins of everything I tried them in.
I've just taken delivery of a WOW and so far I'm loving it. Have you considered trying one out?