Maybe related to data rather than developer but can't track certain flights - a good number of them -with a small window showing only etd/eta against scheduled and no a/c info. Not the sexy flight on-map realtime tracking advertised.
Would want to shift to map from list of incoming flights for an airport but stuck to search it again from scratch in another screen. No tabular data and by-flight statistics which is very useful. Overall feels like a good attempt not followed through so not happy to have paid now.