I've never done the assembly line thing so I'm not sure yet. My guild has round-robin quilts they do but so far I'm not interested in participating - I don't feel my skills are quite "up to snuff" compared to a lot of my "guildies" and I'd hate to ruin someone's work. If they had some that were designated for beginners I'd jump in though.
My guild meeting this week is actually going to be prep work for assembly-line style quilt making (charity quilts) that we'll be doing next month so that will be interesting. I missed the last meeting so I have no clue what's going on; I'm just going to show up with some extra "stuff" in my car (rotary cutter, mat, rulers, etc) and see what needs doing!