The problems only started for me when I received the AIP, in fact it started after I met their AIP conditions.
Borrowing at 75% LTV, mortgage of 2.5 x income, no other loans etc. Never had any marks on my credit history from loans, the only one bad mark was an unused UK current account that went into overdraft in 2016, it was resolved and account closed. The balance details are shown on the report, showing no more than -20GBP when in arrears before going to 0 and being closed. Avant want a letter from the bank with details.
In addition, all of this is happening at a slow pace with each response leading to more questions. Next I expect them to ask about the 150 euro communion money I deposited in 2004.
At this point, I am shocked that they are unable to make a decision and progress to drawdown. I could continue but with paying a high variable rate the benefits of switching reduce each day. BOI made an offer of 2.6% and I'm still due 1% cashback in a few years, so I am just going to stick with BOI for now.
It doesn't give a good impression that they will be good to deal with for any future mortgage requirements.
Edit: I engaged Broker in November, so this has been a long process