In my first game I landed against a tough opponent with a vehicle laden Blood Angels army. A bad result on my deepstrike roll (and re-roll) allowed my opponent to place the Legion of the Damned where ever he wanted. He put them in a far corner and they didn't get a chance bust open a tank and meet up with the terminators like they were supposed to. The guy was a top tier player and proceeded to blast my army off the table me in just a few turns. But thats ok. I learned a lot in defeat and, according to Jawaballs and the other veteran players there, would luckily be at the bottom of the heap for round two.
The Good: I learned that the Land Raider/Terminators can last a few turns of heavy fire. I got a real tournament game under my belt.
The Bad: Relying on luck, LoD going where I want, can lead to getting wiped out. Also - I don't have enough ranged fire-power to go against a heavy tank/vehicle list.