Impressions?
Personally I like it. But I'm afraid that I only like it because I expected the Regen line to work this way for SCH forever and was disappointed about how Regen III and Regen IV originally played out as being inconsistent. I'm finding it more useful in older content where I'm checking off miscellaneous things I never finished, rather than finding it very useful in new (and I use that term loosely, of course) content. The problem with this is I really never felt I needed a higher Regen for this stuff anyway.
I still think we need dispel resistance to SCH buffs, even if only under Perpetuance. I certainly don't think that Regen V is allowing me to fill a main healing role any closer to my WHM than before in new content. Again, I don't want to replace my WHM with my SCH, I just want to be passable here, if not ideal.
Also, I'm asking SE to consider a modification in line with the light and dark arts icon adjustments of years ago. I'm one of those crazy people that values visual and audio elements of video games over spreadsheets and parsers. I was annoyed to hear the constipated Penury sound effect at the end of this spell. Yuck.