I absolutely love OPI GelColor and I think it is the one brand that can really give Shellac a run for its money.
Don't get me wrong, Shellac is a great product and you could not go wrong training in it. In fact, I think OPI and Shellac have a lot in common: Shellac requires no prior buffing of the natural nail, nor does OPI; Shellac does not require dry brushing, nor does OPI; Shellac does not need to be buffed prior to removal, nor does OPI; Shellac goes on quick, nor does OPI; Shellac removes quick, nor does OPI;
I think one of the great advantages Shellac has over every other brand is its training. I think CND training is the best and easily accessible. That said, OPI's range of colors is excellent. They started with 30 colours (including several of their most iconic) and already have 12 more coming out this spring. It has the LED cure and OPI may be THE brand that can offer as well-known a brand name as CND Shellac. Shellac requires no primer on the natural nail - UV gels doAdditionally, OPI's GelColors parallel its regular iconic polish line so there is a great retail opportunity with OPI.