That's quite reassuring. Did you look into Power pong 5000 as well when you bought yours?
I didn't look at any other brands of robot, I only looked at which version of the Butterfly I wanted to get. Butterfly is a pretty big brand and I did trust in that to some extent.
I went for the software of the prime as I think it is the way of the future. Whilst the hardware remains the same, in the past year there have been a number of updates of the software which have introduced new functions that make training even better. The app is pretty easy and my 8 and 10 year old kids took seconds to figure out how it works, which I don't think would have been possible with the hardware control panel.
The tablet that comes with the Amicus is not high end I suspect to keep costs down. However after a year I only ever use my phone which connects and works great.
Looking at the photo's of the heads of the Amicus and Power Pong 5000 they looks identical. Did someone say earlier that they were maunfacturered by the same company?
Saying all that I have not used the power pong 5000, so I cannot give a like for like comparison. I suspect both are really good and perhaps the main difference is in the software?
One last comment is that though the Amicus (and the power pong) is expensive I have used and enjoyed it so much that even after just a year I have definitely had value for money. Buying the best also means that if it can't do something then no other robot can either.