I’m not travelling a lot at present so this doesn’t affect me like it would normally (feels like I shouldn’t criticise because I’m part of the problem!). That said, I agree the schedule is poor in terms of trying to encourage travel.

If you are a day tripper from Heathrow, essentially you need to go home on Aer Lingus. And, if you want to fly Club on that day trip forget it basically. From a connections perspective, the important services are there though - early morning/early afternoon Northbound and early morning/afternoon Southbound.

I have expressed my views about this codeshare a number of times, both here and to BA.

For the arrangement to persist long term and be successful IAG need to bring Aer Lingus into OneWorld or at least enforce Oneworld benefits for customers on BA tickets. BA also need to be able to sell AerSpace fares. The whole arrangement is very inconsistent from a product perspective but then, inconsistency seems to be expected from BA.