I, female, 35 years, the tracked vehicle've indulged at Christmas. After 20 years of abstinence, it should now be ready again. Even without big Lego experience to get, thanks to the very good instructions, rapid progress! After about 5-6 hours of building time the model was in front of me and I'm still excited. Experienced hobbyists do it determined in 4h ;-) The model is relatively large (40x15x35cm). What can you do: Open doors, front axle can be controlled manually, small lever switches between 2 functions: 1. Trucks press 2. Crane and high-shutdown, manually swiveling crane and a wheel the winch can be operated manually. The chains make her visually difficult thing and the rest looks great. Man, the vehicle can still with the Power Functions Set equip, but I can not say anything because I do not own this. All in all, I recommend this tracked vehicle. Much Lego for relatively little money and the model looks really good. The instructions for the 2nd model should be available online. I could not find though ?!