We flew with them last September and it was fine - the flight was on time both ways. No seat-back TV screens in economy but I personally wouldn't pay for the upgrade.
We flew with them in 2009 premium economy, you get an upgraded meal choice, free drinks, IFE, blankets and I think a care pack too. Cabin crew very pleasant and attentive. For us it's a necessity to go PE as DH is 6ft6 and cuddly too we have flown with other airlines PE and for the diffrence in these prices we are happy with Monarch and are flying again with them this year.
We flew with them last September and it was fine - the flight was on time both ways. No seat-back TV screens in economy but I personally wouldn't pay for the upgrade.