I love this truck. You can build it in a couple of days. Instructions are easy so everyone can easy build it, just take a bit time before start arranging screws and nut and then you'll have no problem. It fits nice all Tamiya trailers, better than 3 axle trucks, because it makes a more compact set. For painting better use aerograph or if you don't have spay paint, it would give you a much better finishing.
I get also multifunction unit and wow! It's amazing. All ligths and sounds gives it and incredible realism and don't make battery last quickly, a NiMh 3200 and 7,2V battery would last more than 30 minutes non-stop.
Here in Spain are some trucks and we make meetings, believe me see more than 20 trucks running together is absolutely amazing. One of the best Tamiya products I've ever seen.