I really dislike the RTS Chinese boats as they are such poor quality. I made the learning curve mistakes of first buying a Century 750 and then a Hurricane 1000. Yes, they do look pretty but.... I have read that the same goes for the Monsoon 900 and the Triumph 800.
With kit boats my favorite is the Voyager 1M Racing Cup Yacht. I have 2. I took the advice from this forum and replaced everything except the hull, keel, bulb and rudder.
With good sails and a decent sail servo the boats fly! Enjoy a video of my Voyager in a light breeze.