My 2 cents,
I have an AL80 neutral and would not buy another one. I'd rather have a regular AL 80.
My AL80N seems to get hotter than a regular AL80 on fills. But that's based on my perception from touch, not empirical data.
Even though rated for 3300, most places will fill to 3000 unless you hang over them and remind them otherwise.
I will get steel tanks when I set up for doubles and get into tech and coldwater drysuit diving. But one problem is that at dive charters and resorts it can be a hassle to get steel, if even possible. Since it's usually not feasible to bring your own tanks when you fly, you end up bouncing back and forth between AL and ST. Having to adjust weighting (both amount and position) all the time is another hassle.
I find the same problem switching between AL80 neutral and regular. The benefits of steel might justify it, but not aluminum.