This is a great grill for us propane fans. Our house in the country uses propane and our 1000 gallon tanks mean we don't have worry about running out.
The grill heats up very quickly (400°F in 5 minutes and over 500°F in under 10 minutes). It can also do low and slow for items like prime rib roasts. We recently did a prime rib roast using the rotisserie accessory and it was our best prime rib ever.
The cast iron grates produce great grill mark and works far better than grates made of stainless steel rods, in part they are substantially heavier.
I have cooked on a variety of grills over the past three decades and this is the best one I've every used. I simply cannot find any flaws in it.
After buying a more expensive non Weber grill several years back, I realized I made a mistake leaving Weber Grills. The old grill never cooked evenly. After getting my new Weber I am back to even cooking on all gates and it holds heat very well. It also can get hot enough to cook pizza on a pizza stone. Couldn't be more pleased.
Same Great Weber quality I'm used to. I grill 3-5 times a week, so I'm very particular on the quality and how well it grills. This model is top of the line, I would recommend it to anyone who is a heavy griller like me. I keep it in the breezeway so I can grill whether it is sunny, raining, snowing, or just windy. It works well in all of these conditions.
The S-435 is a well-designed and constructed gas grill. The cooking surface is large enough that I can keep the Weber Griddle installed most of the time to grill and griddle cook at the same time.
Great grill! Very happy I made the choice of the 4 burner model over 3. The extra space is definitely worth it. This grill replaced my 3 burner genesis that I had for 15 years. I‘d say I got my moneys worth!