Most of the terrain was fine, there just wasn't enough to hide huge models like tervigons behind. I had to either make a mad dash for the building in the center of the table and hope to cram them both in there or just deal with them being shot at every turn.
Also, please get rid of those plastic molded hill/ruin/awful things. I had one in the center of my table when I played against orcs, and all our models ended up in the center of the field, but none of them could actually stand on that thing because it was terrible. We had all these piles on every side and just had to agree that our guys were "on" the hill.