I use a few Apple loops here and there (mainly shakers or percussion loops), but honestly I'm not a huge fan of people using Apple loops when it's noticeable. It's kind of shameful to people who use Logic Pro because when you've searched throughout that whole library and you know all those loops pretty well, you'll know when one's used in a song.
I hear them frequently, actually. In fact, I've even heard them pop up
It's pretty common to hear Apple loops pop up.Because of that, however, that motivates me even more to sound different by completely creating my own sounds. Just because everyone is doing it and it's working does not mean that I encourage using Apple loops. In fact, I'm going to be blatantly honest here, that Mancer's Dilemma track from Bastion kinda annoys me because of how heavy it is on the loops. I feel there isn't much originality going on there, to be perfectly honest.