We came here at 4:30ish PM on a Tuesday (Valentine's Day to be specific...we're a low-maintenance kind of couple, heh...) and there was no line. The staff was friendly and scooped decent size amounts which made us happy.
One star was deducted because the guy didn't really seem to notice/mind that he was getting cheese (from the burrito he just scooped guac onto) on the back of the guac spoon and putting it into the guac container...cross contamination should be taken more seriously (I'm a guacaholic but allergic to cheese, so getting my fix can be risky business). I had to strictly direct him to avoid the cheese in the container which was a bit stressful/annoying :/