Having used the Stand-Back for quite some time now, here's a review based on long-term findings.
Brilliant and such a clever idea but the manufacturing components have proven poor in normal use by a regular performer.
First thing to let-go was the tiny, but critically essential, locking twist fixture. The poor metal threading stripped and had to be re-cut with a tread cutter then thread-locked into position. So far it has held up since repair. The webbing features two sets of popper fastenings. One of these literally fell to bits and local dress-making suppliers failed to have anything similar to replace the broken popper snap-on. (The 'male' popper fixture is riveted to the Stand-Back base cross piece so a total replacement with a complete new popper & fastener set is not possible).
So, is the Stand-Back a consumable just like Guitar Strings? It seems to work and last only so long in regular use. Pity, as it's otherwise a great idea for a light weight amp tilt compared to those heavy metal legs that can be permanently fixed to your amp/cab sides.