I think the answer is "variable" and "depends how lucky you are"
We go at the end of May every year, and in 2015 immigration was slow and the exit from the baggage area was horrendous with the longest / slowest queue I have ever seen at an airport.
Last summer was much better; we used the first immigration self service machines you come to as you approach the immigration area and there was no queue there; immigration was then pretty quick and the baggage collection and exit was pretty reasonable so hopefully 2015 was an exception.
Now that they have brought the flight times forward we'll find out if that makes the experience better or worse! I guess it all depends on what other flights come in at around the same time....