I resisted getting one for years because the one I had growing up was pretty bad. Nothing would dry, items would come out dirty all the time and it was loud and would "chug" for hours.
However, a good (not even fancy, just mid-range from a competent manufacturer) modern dishwasher is night and day. Doesn't even need special tablets, it just gets things clean, even on the eco mode, which is the only one I use. Its not the quietest on the market by a dB or two, but its basically not noticeable.
So much better than having a huge pile of dishes taking up the entire draining rack until dry enough to put away, getting splashed with more water every time the sink is used (and the water is medium-hard so that makes a mess, but the dishwasher has a water softener).