Product review (5 stars): Worth the extra money!!
Had tried the generic vent kit from a big box home improvement store to side vent my LG dryer with little luck and a lot of work to realize they weren't a good match for the LG.  Ordered the LG kit and was very pleased with the quality and the comparative ease of installation.  WIth all the kits I tried, it is a chore getting it stabbed and taped onto the discharge duct, but if you have a good flashlight and someone to help, it goes together fairly quickly. Only downside is there were no instructions or illustrations to allow you to determine the order and orientation of the components and the positioning or the duct with the securing tab.  FIrst attempt was a bust as far as matching up the ends and the securing tab, so I pulled it all out of the dryer case, dry fit the components together, and got the job done.