I just started using this saw (I purchased the lefthand 6391) to complement my lefthand Skil 5510 5-1/2" Circular Saw. My old (20 years) 7-1/4" Skil saw was overdue for replacement. Even though I use my 5-1/2 for most of my cutting, I need a 7-1/4 now and then for heavier work like cutting 4x stock. Here are my impressions of the Milwaukee 6391.