"This is the first Technic set i have built from the new style all liftarm technic ie without the traditional technic beam and studs, which technic lego seems to have moved away from.
This new style of build using axles, axle conectors, angle connectors and liftarms etc is definately more complex, but ultimately more detailed as a greater number of combinations create structure, form and rigidity. However i do like the new studless build style!
The excavator itself uses the new linear actuators, which i was interested to see in operation. They are quite large, they do workwell with PF motors, and can be operated well, all be it slowly, manually.
The actual gearing used to make the actuators work seems complex. A clutch style gearbox assembly is used to switch between actuators, so you cannot operate both acuators at the same time.
The actuators seem to have replaced the discontinued pneumatic cylinders which i felt were better as the were avaliable in smaller sizes and when linked to a motor powered compressor, worked very well.
The set uses a number of colours, red, blue, dark grey, light grey, black, tan and white. Lego seem to have chosen colour codes to help you build the more complex structures. However for my eye, 3 colours would of been fine.
The build instruction is modular in 3 sections, base with tracks, main body and excavator arm. I found the assembly instructions clear and easy to follow, build time approx 200 minutes."