There are some gems on those. I can’t remember which particular volume it is, but Spy Versus Spy’s Set The Spokes Alight is pretty great, all the more so because they probably recorded less than 20 songs all in all.
In fact, I seem to remember that even back then when a lot of the bands on those comps were active it was really hard to find any information about them if you liked their stuff…most of the comps came out even before Myspace was a thing!