The best way I usually describe it is it's the difference between drawing à straight line with a pencil opposed to sketching a line with a pencil. For the stylist, razor cuts versus scissor cuts means different cutting techniques. The hair is held differently and cut using different motions. These techniques require practice to master.
Some stylists prefer one style of cutting over the other, while some are equally comfortable with either cutting style. The razor tool can be used for the entire cut, or simply to soften and texturize the hair once it has been initially cut using scissors. However, with a razor you can do more seem less weight removal and personalizing in my opinion.
For the client, the results are the biggest difference between the two cutting methods. The hairstyles achieved with razor cuts tend to be smoother and softer looking. In many ways the look is more organic, without clearly defined layering or weight lines.
At Olexa Hair, Heather has been heavily trained in cutting with both techniques at Bumble and bumble in NYC but is usually seeked out for her straight razor cuts as the training is usually more advanced than the scissor method and a more rare talent as most stylists don't have the specific training using the tool. Heather has taught classes to other hairdressers looking to advance or add this skill to their services and has truly mastered the craft.