No I didn't hear of system unique. I was talking to a nail tech who uses lcn and came to know that it is much much cheaper then trosani, so i went to sue and really liked the products, i stayed near her while she did 3 clients! and could ask her anything I bought primer and base coat with acid which she said is best for our climate, but then I can opt for other bonders which contain no acid and then one compoment resin which is the builder gel, till now i only used it on me and another client since i still have some of the trosani, but i m happy with it. they have a big choice of colours as well. regarding the filing it also took me time but now i m using a nail drill only to take off the bulk, i bought a cheap mani pro from ebay just to try it out but i m thinking of buyng a kupa now since i m used to it, i still take 2 hrs or 1.45 to do a refill.