Be wary. Some (all?) of their UK flights are currently routed LHR-MAN-DAC-LHR-MAN
So non-stop may not be non-stop.
What type of fares do they have in J?
I'm resisting commenting on their hard product as it would all be anecdotal, but they they not leased a couple of 777's for this route? So it should be good hard product but I hear little has changed with regards to their ontime performances.