Besides being really strong and modular. I really liked the way the ModTruss traps and holds the light inside of it. That polished aluminum is fantastic and gives an entirely different artistic look at lights inside of truss.
Wow, great product. At first I was kind of MEH when he compared them to LEGOS, they aren't plastic and they don't snap together, but he redeemed himself when he compared the system to Erector Sets*, my favorite childhood toy.
*Meccano for those across the pond.