I love how easy it is! It's so simple yet effective at what they do - make me beautiful every day of my life!! They are always there for us when we need them (even if that means being late). We have never had any issues with their products or service in all these years since using glam squad cosmetics. The only thing i dislike about this product line would probably just come down to personal preference as well but maybe having more variety within each category? Not really sure because everything has been great thus far. !