I switched to the Permo a few years back and it was very easy.
The only thing you have to do is inform any organisation which transfers money into your account, ie salary etc. The bank staff do everything else.
One piece of advice - put some money into the account immediately.
If the bank order you a cheque book, the government cheque book
stamp duty will be taken from your account very quickly, perhaps before
the funds from your old account are transferred and you can find yourself
in the red very soon. Put 20 euros in the account on day one to avoid this.
BTW, there are very few counter staff in the Permo so the queues in the bank are very long.
This does not bother me, as I have very little reason to go to a bank.
Also, this may be the case with all banks these days. I dont know how they compare