[BrianR]

I use the center armrest in my Avalanche all the time, but I have long arms and usually need to rest my elbows on something to prevent fatigue. Also, I store all kinds of stuff in it, from drinks to cell phone to my notebook and pen and crap like that.

The Avalanche isn't designed too well with regards to cupholders, no ashtray (I quit smoking anyway), no keyway on the passenger door or tailgate (cheapskates!), no power receptacles in the backseat or rear cargo area and generally poor dashboard layout. I still like it though.