I have tried a DIY vacuum hanger and been very pleased with it compared with the wench that I previously used. I’ve been surprised at how much weight it can hold (>10 lbs) with my regular soft sleeves and can go even higher when using stronger silicones. I’ve also considered trying a hybrid vacuum/wench to get a little more capacity, if necessary.
That being said, I haven’t been hanging as part of my regular routine. The wench was not easy nor comfortable in comparison to the vacuum hanger, but more experience with the vacuum hanger might reveal more weaknesses.
Finally, if you are used to doing longer hanging sets, you might be limited to shorter sets with the vacuum hanger. Fluid build up could become a problem, otherwise.