I didn't change rockers when I switched, but the main thing I noticed with my Matrix Legacy was I suddenly had beautiful edge rip. Like coaches who were not my own complemented my crossovers. I felt a little sad since I knew it was just the blades, but I sounded like a skater
For me, the sharpening time went from 8 weeks on my previous blades to 20 weeks on my Matrix Legacy; and I like my blades sharp, so that was "frequent" - I probably could have gone much longer.
I don't adjust easily to blades, and this time I also got new boots, so it was a good month of 3-4 days a week before I felt like I could do anything, but man, I LOVE the Matrix Legacy's.