The biggest difficulty I had with this model was one of the energy cables disappearing on me while building it. Otherwise it is basically just a bigger Land Raider. Not wanting to have to bother with water slide transfers, I opted to raid my dwindling supply of brass etched.
Knowing the scare effect Land Raiders have upon players, I am sure the Spartan would have a similar "kill it fast" effect. That kind of psychological effect can be interesting to observe, especially when playing in tournaments that allow Forge World. Though this purchase was mainly a way to round out my Ultramarines Chapter, it also helps beef up my Pre-Heresy force, which does include a 20 Marine Tactical squad.
While working on this model, I found another on Ebay, so expect to see Spartan 2 as a post some time in the future.