I’ve been a big fan of Irix lenses since I first had the chance to check out their then-new Irix 15mm f/2.4 in person at The Photography Show in 2016. Later in the year, they let me have a bit of a play with the Irix 11mm f/4 at Photokina later in the year. They’re both very impressive lenses.
The only potential issue with them, though, is that until recently, if you wanted lens profiles for these lenses in Adobe Camera Raw and Lightroom, you needed to download them yourself and install them manually. Now, though, Adobe have officially added lens profiles to support these lenses to CC.