It took me some time to find the reverse gear by pushing the trigger The rudder setting allows a boat that flies (planing it very well) perfectly straight. There is water in the vessel each time after two uses. (Is this normal?) Once back on the boat does not come back on the belly !!! (Large galley in the late afternoon that ended in the dark and could have finished swimming). It is really fast and very handy. My 6 year old son is doing well, but we must remain off for the remote is heavy with 6 lr6 batteries). I was delivered a model with a 700mAh battery LiOn instead of LiPo descriptive (I think LiOn is better). Once the low battery was time to bring the edge (1m30 about autonomy at reduced speed). I put 4 stars because of the inefficient turning system (-1), the water in the boat minquiète (-1) and through LiOn battery (1). If the boat is deteriorating too quickly I retire.