I find these tablets just fine. I always put it on the bottom of the d/washer as they don't fit in my dispenser, so it always dissolves. I sometimes wonder if people rinse their dishes, specially dinner plates, before putting them in the machine. I'm sure this makes a huge difference to the performance of both the washer and detergent, along with not overloading. I've raised a lot of eyebrows over the years at the way some people stack their machines, so I'm not surprised there's performance issues. I only wash every few days, so in the interim day I do a pre-rinse, which may not be a function of all dishwashers. However, I do agree that the Finish Powerball tablets are probably the best. I buy them on eBay.

According to choice magazine, and by our own observations of our dishes, the product does clean very well, only just behind "Finish Quantum"- which is multiple times more expensive, tested on animals and is appalling for the environment. Only gripe about this product is that it doesn't fit in our tablet socket in our dishwasher, and when we can get it in there it doesn't dissolve. We simply read the label and it says to put the tablet on the dishwasher floor. Works like a charm.
Very effective cleaning, relatively inexpensive, no animal testing, natural ingredients
Doesn't fit in some dishwashers and may not fully dissolve- solved by putting on dishwasher floor