you can use it, with 38mm rather than the 40mm stroke shock you'll get a little less travel, but it will probably not make a huge difference in ride feel.
The X Fusion shock is a budget option, but they're actually pretty good and X fusion have been slowly but surely carving a good reputation for themselves.
I can only speak for their forks in terms of feel, as to me, rear shock between manufacturers don't feel that different, mostly as there's more than the shock at play between bikes, shock rate will be a bigger factor between two different bikes running different shocks....but, for their forks, they're well made and pretty reliable, if not that sophisticated in terms of damping.