This point has arisen so many times, so yet again we need to take a measured and balanced view about it.
I have no problem with Powertouch, but equally I have no problem with any of the other caravan mover manufactures that make main axle movers. Quite simply Axle movers they are the best engineering solution for obtaining grip to move and even more importantly stop and hold a caravan on a slope.
In practice all mover manufacturers employ the same basic principle of electric motor, reduction gear box and driving roller forced against the caravans tyres. There's very little new mechanical invention here, so its likely that most manufactures will have similar reliability levels.
That being likely, why is it we hear more about Powertouch than most others? It could well be they have sold more than anyone else, so even if the percentage of failures is no worse than everyone else, the bigger number of sales will bring a bigger number of failure reports.
We will never be able to confirm or refute that suggestion, as all manufactures will consider sales numbers as commercially confidential.
All power to Powertouch for keeping customers happy, that is a plus point for their commitment to customer service, and I wish other manufacturers would take the same view on such things. But being someone who has been involved with Reliability, and Quality Management, seeing a greater number of comments about the quality of the after sales service, does make me ask why do so many people have problems that require after service support?
What Powertouch have done better than most other manufacturers is to get their name associated with good service. That is not suggesting that other manufactures have poor service, and long may it continue, but perhaps its time to go back to the drawing board and design out the most common failures you get. And that applies to ALL manufacturers.
As for choosing which is the best mover, Until there is a true like for like comparison test carried out by the magazines or Which, I don't think there is a lot to choose between them. But if getting good service if it does go wrong is a high priority, then you have plenty of testimonials to guide you.