I have a Thorn Ripio, which I guess is not far from the concept of a Catalyst, though with dérailleur gears and probably different tubing - the Ripio is Reynolds 725?
I think it is an excellent bike, and it is a shame they are no longer made - I guess the Ripio never caught on because it looked basic in equipment and expensive beside the offerings in the chain stores, with disc brakes, sus forks and all the kit. But it is well made and very secure and comfortable.
I ride mine mainly on roads and trails, with a Mt Tura fork - the sus fork it came with unused so far. Very sure footed when I have gone onto rougher stuff.
With a low top tube, and geometry that suits me very well, I like it more than any bike I have ever had, and I guess would be good for your sort of riding.
Good luck
Lewis