I am really impressed with my Superflashes and RADBOTs. I currently use two of each (1 on rack, 1 on rack bag, 1 on seat post, 1 on helmet). I have had numerous comments on brightness and visibility and feel pretty secure running all four. I got most as stocking stuffers, which worked out great in the money department. I think you can commute just fine with a Superflash and a RADBOT. I like the Dinotte immensely, and will probably get one in the future, but I am fine with my set up.