After using my new Regal S590 Natural Gas grill for 6 weeks I can tell you the pros and cons.
Pros: Quality construction, great appearance, lighter works, backlit knobs work well, easy to clean, even heat, super hot - super fast, thermometer works well.

Cons: Drip tray is too small...when it rains, water runs into the drip tray and it overflows making a mess. I've set a large tinfoil pan inside the doors to catch the overflow...works well. 
Flare-ups....anything with a bit of fat that drips causes a huge flare-up that doesn't seem to stop. To cook a strip loin steak, I have to keep the lid open and stand there squirting water on the flames. Homemade burgers had a flame like a bon fire. 

All in all, I like the grill, maybe I just need more time to figure out the flare-ups!!