It all depends on your attitude towards the ending.
SPOILER WARNING!
Light side, if you bother to listen to the Jedi masters, it's a great moment. The mix of sad music and the Jedi's explanation of the entire echo thing makes it good. And the final is NOT a cliffhanger if you bother to THINK!
Dark side, malachor final SUCKS. It doesn't matter what you say, it will always be a rushed ending.ALWAYS!