There are so many different styles of blades out there (Just like skis) what will you use them fore if it’s for training and getting shape, or if it’s for sliding rails, or maybe hard core racing or Nordic style inline skating with poles and shit. All types are different and just like skis - being good at one thing often means that the product sucks in other fields.
Oh, ok I use Powerslide, and Core racing custom pro models in carbon with 4X100mm wheels. I raced in top 30 at Worlds Masters and European championships marathons. 4 years at pro level.