Having used JeppFD for a couple of sectors my only query is why have Jepp not put the small frequency boxes on the same as the paper chart? I know you can click on the airspace and it will bring up the frequencies for the FIR but this may run to 20 frequencies. The boxes on the paper chart only had a couple of sector frequencies useful for that geographical area. Apart from that I find it easy to use- now to get approval to use it in lieu of Jepp world paper charts- nice.