The ESM planes are better than they use to be. They still need some work. MANY people have problems in building them and with there retracts. Building these planes take PAINS TAKING WEEKS!! These are NOT the ARF you get from others!! It takes time, patience, and knowledge! Don't except them to go together in a week. You will need to add fiberglass in some areas and/or build it up. I would say on the first production run to PASS..... Wait for the second or third even!! These to me are Advanced Builders ARF. Instructions are VERY poor!! So no Help there. I have had many of these models and ALL are the same!!!