When I saw Federal Aluminum (9mm) at my Walmart, I bought all they had, which looked like a case. On spec, I just knew it was high quality and low priced ammo that luckily, all my guns would surely run. (It was $9.99/box I believe). Then it turns out they had 2 boxes only, everything else was regular $15 a box stacked with it.
I haven't shot it yet, I will admit. But, when I first bought my Glock 23 years ago, I bought a copious amount of Blazer aluminum cased .40 and 9mm for the LWD 40-9 bbl. All of it was fine. Federal and Blazer/CCI etc. are two of my favorite companies and I trust them.
Now if I was shooting a competition gun, perhaps something very finnicky due to expensive parts or a special barrel, or a gun that specifically says avoid this type of ammo, I guess I'd pass.
Fortunately for me, my Glock 19 Gen 2, Glock 23 Gen 3, Sig P226 MK25, and even S&W Shield 9mm ,all eat up ammo like chicken chow mein, all seasonings and styles, grains, metals, bullet types, etc.
So I buy it cheap and stack that stuff deep and shoot it like it's been a bad boy.