Myself and 2 friends bought a toyabi T03 each last week, £28 gets you a nicely made boat, proper waterproofing measures that work, proportional servo and speed control/rx sealed with silicone around the wiring, watercooled motor, two batteries and charger and a nice transmitter. We had a lot of fun in our local river which was still in flood, these boats coped well andare fast. My friend's boat dived through a wave and wedged into rocks on the bottom, 2 and a half feet underwater, right in front of me. It stayed wedged for a long 15 seconds then worked loose and bobbed up downstream, the relief on my friends face when he realised he hadnt lost it. all three of our boats went underwater a few times. I had previously followed the well detailed instuctions on how to grease the propshaft using the supplied grease. Mine had no water, at all, I,had been under or upside down for a total of probably 30 seconds, so the hatch seal works. The instructions detail how to right the boat if you flip it over. And thankfully, it works. Awesome little boats at the price, they come with a spare prop and nyloc nut too. I ran my blue yellow speedboat alongside the other guys and mine wasnt that much slower, but my motor got hotter, time to try a cooling coil? I am happy with my blue yellow speedboat, considering the hull was a pound. The radio donor car cost me 27, these have since rocketed in price. In summary, the Toyabi T03 is an excellent little boat for the price, quality build and fast, very fast with tight turns if you want. 2 batteries make it well worth it.