Yup. Getting rendaku correct without knowing why is right up there with knowing how to pronounce a new kanji that you don’t know the meaning of. It’s a pleasant feeling, but it makes the hair on the back of my neck stand up every time it happens.
One thing I’ve not seen mentioned is the importance of hearing and saying (at least in your mind) each item as you do your reviews. I think enabling the audio is a great idea, especially if you’ve not been exposed to a lot of spoken Japanese, but hearing/saying it in your mind first seems to be even more important.
I’d be willing to bet not everyone does this, but I guarantee it will help with your pronunciation, your listening skills, and your ability to distinguish, speak, and remember rendaku, broad vowels (しょう vs. しょ, for example), 促音 (きて vs. きって), and other unique Japanese pronunciation oddities.
(I’m less certain it’s necessary to taste @plantron 's posts in your mind’s, err, mouth, but it can’t hurt.)