From what I have read it was a perfectly acceptable aircraft. Where it suffered was in 'hot and high' conditions where it simply didn't have enough grunt! It's been mentioned numerous times that it needed Tynes and from memory there was a latter series wing (series 200) which would have made it more capable if they had been retrofitted.
It was an age old example of the RAF using a tactical transporter for strategic use and that's were the main problems were found.