I bought this head stand for the road since my band was constantly having to change strings on the fly before shows and we had no great place to do it.
Despite the fact that it feels quite flimsy on its own and is made out of really light plastic, it has always held the head steady (on a flat surface, of course) and I've never had any issues with knocking it over. It's extremely lightweight and portable and a godsend for that quick pre-gig string change.
It has more durable rubber padding where it counts and I've never worried about the stand damaging a guitar. Although I wouldn't use this consistently in a workshop setting, it's definitely a must-have for a roadkit. This little guy and their combination string winder/cutter are always in my bag or pocket when we're gigging.
Long story short: Great for the road and in a pinch, but get something more sturtdy and solid for when it really counts.