I prefer odorless products, because after doing nails for so long I have gotten tired of the smell of traditional acrylics. I think that some systems have a stronger smell than others, and some less. Clarite, by OPI was a nice odorless system I used once upon a time. I also have used the Tammy Taylor odorless system. But as Geeg stated the top layer of product does "roll' off when you're refining the enhancement, thus getting all over you and your clients hands. Odorless systems also are also tricky to tell when its dry, and are slower to work with. I plan to start using gels and wraps more, because I prefer not to have the acrylic odor in my salon either, and neither do my clients. Good Luck! Later!