Previously I had two Stageworx BLS-315 for my Stairville CLB5 PAR bar but they were heavy, the cases were rubbish and difficult to handle and they were a little too long for the width of my boot, so they had to go in the foot space of the rear seats in my estate car, which was a pain.
These Gravity stands don't go quite as high as the Stageworx ones, but that hasn't been a problem for me. I play sat down, to a standing audience, often without a stage, but I would say that they are still tall enough to be able to angle all of the lights to not blind you or your audience.
They fit comfortably in the boot of my car with the rest of my PA. So I would imagine that they're not too long for most estate boots to accommodate them.
The pair of them weigh less than a single Stageworx BLS-315 and that alone makes set up and pack down notably easier.
The case they come in is great! It's probably better than any of the other cases that I have for my PA. The handle is well padded and very comfortable. The padding around the stands is excellent too and the double zip 'tongue' is quick to open and close and you don't have to fight to get the stands in or out of the case.
Would thoroughly recommend. They're not that much more expensive than the Stageworx ones, I wish I'd just bought these in the first place