I really like that half the mounts are threaded and half are not, this gave me more flexibility in mounting options. This allowed me to lower my TV on wheels 5 inches. This is a quality product that will not warp or bend. It doesn't feel flimsy, but it's pretty light. About $20 for a set of screws to ensure I can mount the TV successfully, but it wasn't necessary. They give you everything you need for installation. Super handy little kit.