I'm curious about the table you're using in this pic. It looks like a roll-top table...is it? Is it aluminum? I'm looking for a new one. I like the roll-top table for the form factor (roll-up nicely into a bag and take up minimal room). But, the one I currently have is too short. The one in this pic looks to be a decent working height. How do you like and where did you get it from?