I currently game their PP-9003 line and have said that I wouldn't upgrade from them since they check all the boxes for me from appearance to performance but I must admit that these new Miura's have my interest!
Miura IC-601 Irons
Just my opinion but there are much better hollow body irons out there, I gave them a few weeks and could never make them work. Just a very strange clubhead and not any longer than any other Miura even with the hollow body.