In my company, there are 3 of A320s and 7 of A319s, I did not often use Flap 3 landing unless appllied noise restriction in BKK airport.
Pesonel Tech. is little late in thrust reduction ( thrust is not much to keep Vapp ) and my flare is changing pitch not as much as Flap full ( attitude already high so margin for tail strike is not much ).
Every time I do Flap 3 landing, I have to prepare my configuration earlier than Flap full coz' speed not reduce nicely when do ILS Decel. App.