Neat little device, folds up small, holds a 50w 1x12 valve combo with no problems. Some debate about angling up combos - if you elevate them ( put them on top of a flight case or chair or beer crate) then they are nearer to head height and you will find yourself turning down. If you tilt them then you get a similar effect but the naysayers say that single speaker combos are so directional that the sound carries on to the ceiling ( especially if you are on an elevated stage) more than it does to the audience. If you are moving from having your combo on the floor to this or any kind of stand ( even a beer crate) you will notice the decoupling effect which usually means you lose a lot of low end. This is, however, a more consistent tone from venue to venue.
I now have a Laney combo with its own tilt mechanism so not using this now but the Ultimate stand is perfectly tough. It isn't wobbly at all but with a hefty push it would be easier to knock over than if your combo was on the floor. On the other hand perched on top of a beer crate isn't the safest either.