We're currently on 13.0 so it may be slightly different in later versions. Clarity works, but it has issues. Sometimes it won't load when you first visit the page, and you have to reload the page several times before it does. This can be alleviated if you clear/disable the cache but probably not a great idea in general. Other than that, the main thing I run in to is trying to edit lookups on grid pages, you have to select your option twice before it takes it (click the dropdown, pick an option, its still empty. Click dropdown again and select, now it sticks).