Even though I don't do sessions here on italki, since I'm learning Korean and Japanese I would prefer mainly grammar and conversational skills. With conversational skills you will naturally pick up pronunciation. I would rather have a teacher that is funny and relaxed because it would make learning more fun and easier to comprehend lanauage structure that is being taught. 

Even I'm not having sessions here on italki, but as I'm learning English I think I like it to be focused on grammar more, cause when I'm trying to give an example in grammar, I have to use more vocabulary, and absolutely improving pronunciation "accent" by having conversations , :D simply I would like to do all of these ^^"