I gathered them up in the years after Graduation because before my life fell apart I was going to attempt to be a dedicated tournament grinder because I loved the game and well, if I play a game I follow the lore.
I have them still in a box and really haven't read them in forever but..The actual Weatherlight Anthology was terribly uneven, but I would attribute that to being an anthology so the plot had some flow issues.
When you get to the Mercadian Masques Block the books become a bit more coherent and passable (outside of Prophecy which is just filler junk) but they never really rise above "Mediocre and passable"
The Invasion Block is a fine Climax to a building story.
Odyssey..is a cool bottle episode
Onslaught is fucking awful except the moment that Kamahl turned the Mirari's power in on itself by showing what happens when you take the Colors to extremes.
Mirrodin..was 2/3 of a good plot that exploded in the last book and then got turned into absolute insane nonesense in Scars.