So far, my model 4000 washer has been outstanding. Build quality is excellent. I am especially impressed by the anti-vibration technology. My laundry machines are stacked (using the LG stacking kit). The washer expertly balances the load prior to the final spin dry. No matter what the spin speed is, the washer has minimal vibration. Very pleased with LG. (LG also manufactured my refrigerator, which was badged under another well-known brand name). They are a bit more money than some - but you get what you pay for.