There is no case that's better suited for circuit tracks that I'm aware of. At first it seemed like a tight fit but after a few days of leaving it in the case it seemed to fit a lot better. It's snug and keeps it from shifting around very nicely. The semi hard case is perfect for travel and seems like it will stand up to being put in a backpack. The zippers are smooth and zip up really well too. There's a little room in the top pocket for some cables but I personally wouldn't put the power adapter in there because it puts pressure on the Circuit Tracks. You can get it to fit if you are up for removing the prongs each time but I'd sooner carry a power brick to recharge it as some slim ones would fit nicely. I was super hesitant to spend this kind of money on a case when there are cheaper ones out there but after looking at reviews and making measurements, this one will stand up to rough handling while keeping the Circuit well protected in the slimmest form possible. You get what you pay for in protection. Highly recommend getting this if you plan on taking your Circuit anywhere.