The subject of movers has come up many times in the past and will probably do so again in the future.
I don't think there is any conclusive evidence that any one make of caravan mover is significantly better than the rest, and even if there were, it makes no difference to the caravanner that happens to have the one that fails. For him/her it is a major problem and might even prevent them from taking a well deserved and planned holiday.
People are very sensitive to holidays. They have a very limited time in which to take them, and anything that prevents or delays the holiday becomes a monster in their eyes.
When they get their caravans out a day or two before they intend to go away or whilst they are away and they find that something isn't working, how frustrating it must be to find you can't get advice, parts, service or a repair.
Every manufacture has to accept the possibility that some of their products will fail at some time, They should consider the times that these faults are most likely to be detected and when the loss of function of their product will have the most impact to the user. Manufactures should endeavour to ensure they have the capacity to rapidly deal with these instances and as Simon and Garfunkle sang - keeping the customer satisfied.
Powertouch have broadly done all this. Whether their products are any worse than another is not material, the practical realisation is they DO look after their users and treat them with respect. Given that you will be annoyed with the manufacture of any product that fails, the fact that Powertouch resolve it quickly impresses you and the company moves up in your estimation, and you may even feel very pleased with the company. In practice all you have received is what you have every right to expect. However it throws into sharp relief the failings of other manufactures.
This can be enough raise the awareness and good will towards the Powertouch name.