I can’t say anything about PL as I have never owned any of their products.
I have had several IA components over the last 5 years. Stereo 40 Integrated and PS1 Phono Pre most recently. My experience with IA has been very positive. Zero issues, great support from the people at Icon (my first venture into tube gear so I had lots of questions), sound quality that exceeded my expectation and beautiful build. The bias adjustments on the Stereo 40 were extremely easy and quick so for me the auto bias feature didn’t sway my decision. I’m not a rapid fire tube swapper either.
If you have the ability, I’d suggest that you demo both in your home. My purchases were from Music Direct which does offer a 30 or 60 day in home demo. Needless to say, none of the IA stuff went back.