I've never used the infrared version of a grille, so I can't comment on that. However, when I invested in a new grill a few years ago, I decided to take advantage of the fact that I have natural gas connected to my house. I elected to buy one very similar to the one the Thread Starter has, however I special ordered it with the natural gas kit. I called my neighbor who has a plumbing business to tap into my gas line and run one to my deck. There are three wonderful benefits to this.
1, the obvious, never ever again will I have to get a tank filled or overpay the Blue Rhino guys because the tank ran dry with $30 worth of two steaks on the grill..
2, the best hidden benefit, that when the power is out, I can just about cook anything I need on the grill because the gas keeps running. When a tornado hit a half mile from my house here a few years ago, while the power was off I cooked eggs and bacon on my grill on my deck as I watched TN
(at the time) Governor Phil Bredesen fly over the damage in a military helicopter. Power was off for days but I could still cook!
3, Natural Gas cooks WAY hotter than propane. The first few grillings I just about burnt everything. I can see 800-900 degrees easily on the temp gauge when all is at full blast. Propane just won't do that. Makes grate cleaning easy and searing a breeze if you remember to turn it down..
Anyway, enjoy the grill! I like the light idea. Mine has no such feature...