I've been having mixed success with this one. I have been having to rinse things before putting in the dishwasher (I keep a bucket of water in the sink for that process) but it worries me with all that salt, especially on good crystal etc because isn't salt a cutting compound? I only use it perhaps once in every 3 times these days, depending on what is in the dishwasher.
If you have an enclosed heating element, then it is ok on the bottom (nothing gets melted when it is enclosed I can vouch for that ) I love the dishwasher goo but my dishwasher doesn't so we have to alternate. My dishwasher is very sensitive (NEVER recommend it ) and if I do too many goo loads in succession it has a hissy fit and claims that it is blocked up and dirty and won't work (actually is a service call to get fixed but I have a fantastic service man who showed me how to fix it lol) still very annoying