1) never buy Samsung
2) never buy LG

Why ?? Because there is no spare parts support - it breaks, you're screwed! This is the sh!t big box stores sell but quality appliance stores won't touch.

3) the only option you need is "potscrubber" (and maybe delay start)
4) if I gotta "pre-rinse" under the tap, I may as well finish the job. What do I need a dishwasher for ?!?!
5) don't use any detergents that are in "dissolves in water" plastic wrap - these will clog a fine screen filter in no time flat - use either a liquid or a compressed dry detergent cube.