but he now has his eye on a Giant Reign
Having owned both a Hustler and a Reign, he will probably find the Reign more planted than the Hustler. Heavier, slacker head angle (with a proper length fork), more travel and a fantastic suspension design on the Reign. The Reign isn't as engaging though for general riding – it sort of obliterates everything in its path on a normal ride. I also didn't find the Reign to be any more or less reliable than the Reign, and certainly not as stiff in the rear end.
The Enduro and Stinky are both in the same sort of 'family' as the Reign for riding, whereas the Hustler is more like the Five, Dawg, 5 Spot etc type of riding.
Reign's are great VFM too, but you need a big fork to do them justice 🙂