After looking at the desirable but expensive Weber LP Grills and having owned several of the mid-priced "junk" grills that lasted 2 to 4 yrs. I found the Ducane grill. It's made by Weber, has the Weber support and is a quality grill.
The Ducane name has been around for many years and though they had a good reputation they were hard to find. They line is basically limited to 2 products and don't have all kinds of bells and whistles. They just cook well. The 2 units are the 3100 & 4100 series. I purchased the 3100 which met my needs.
The Ducane 3100 equates to the Weber Spirit E-310. Both have approximately the same cooking area & have 3 burners, 36,000 BTU. If you have need of a larger cooking area try the Ducane 4100 with 4 burners, 48,000 BTU.
Both my son & son-in-law have Webers and one of the things I've always disliked about the Webers is that their controls are mounted on the top side of the table area. Why not the front like all others? Their location minimizes the surface area to be able to put down plates or items being used while cooking.
At any rate I bought my Ducane 3100 for $299.00, it was assembled and delivered for $10.00. That's a number I could live with and get a quality product.