We've only had our Greyhawk for two months but we love it so far. On our fourth trip right now so we're getting some experience with it.
The Greyhawk is the "upscale entry model" so I think the Redhawk may be a more fair comparison with the Four Winds, which is interesting considering how close they are in price. Based on the ones we looked at of both models, though, the Greyhawk really looked and felt nicer. Higher quality interiors and such.
There are still a few things that are kinda silly on it, though. Like putting the TV near the ceiling in the bedroom...the screen blacks out at that angle if you're not sitting up straight on the bed, so I swapped the cabinetry around to make it more user friendly. I think most RVs in this price range are likely to have some quirks like that that you'd have to compromise on.
Hope you're happy with your purchase!