[willowfaery]

The only problem I could think of with two cubes high is reaching your piggies and cleaning your cage. But, if you're really tall, it might work well for you. I did have mine on a 1-cube-high stand and I really liked it. But, until I can get some coroplast, my piggies are camped out on the floor. I don't think safety is an issue with stand height. Just make sure you secure everything very well with zip ties. You definitely don't want to come home to a collapsed cage. I've seen some pics with both heights of stands, so I'm assuming it's safe.