DXC was pretty much the grand culmination of all things the fans had been clamoring for.
"We want Rondo!"
"We want a classic game again!"
"We want to see a 2.5D game!"
"More Ayami!"
The only thing we really did not get here was Yamane.
DXC pretty much improved on Rondo in every way. Smoother gameplay, reworked graphics, Ayami designs (Maria haters be damned), relatively good voice overs, new bosses, boss rush, and making some sense of the slapped in crappy Level 5'.
Not to mention it put in an upgraded version of SotN, adding back in all those little fun trinkets that were removed from the USA release. Sure it didn't have the added areas that the Saturn version had, but anyone who has played it can tell you that those added areas are made of ugly recycled mix and match graphics from other areas, with boring and unoriginal layouts, and overall just pointless.
DXC was awesome at release, and still is an outstanding title at the top of the franchise.