The Pace boxes are far more reliable than the Amstrad ones. In my opinion Amstrad have turned out some of the worst electrical junk ever made. I remember a range of so called 'Hi-Fi' they made years ago called 'The Executive Range' that were cheap & very nasty, with very sharp edges.
Then they made cheap a look a like music system that you could copy tapes with. (Suitable only for those without hearing). I have opinions about 'Mr Sugar' that I will keep to myself apart from his foul language. If I see him on TV he gets around 3 nano seconds of air time, less if possible.