I too used it back in the separate-windows days, and thought it was pretty terrible. As soon as it got updated (which took quite a while) I didn’t have problems with the UI. People saying “you have to look up guides to learn how to use it” is to me… Well, doesn’t every professional tool/program require some getting used to? It’s not like you just open up Photoshop and know how to use it.
I have Informant installed for this. Saved my hide a few times.