I was happy when they picked up the format in 1991, but they never did a really great job with it. Unfortunately that was right before grunge took over the format and pushed out all the other types of music being played on most stations. By the time they flipped I had already given up on it. When they brought it back on what was KSSJ, I was hopeful but it was basically a KWOD soundalike minus any live DJs, it's been automated since the beginning and quite repetitive. It actually seems to be doing better in the ratings than KITS was lately however.
I've actually read about the history of KWOD's format on Alex Cosper's web page, who was the PD at the station between 91 and 96. The station, by reading the playlist's and Alex's commentary, really was solid on both the playlist and ratings front between 1993 and 1995. The station squandered that, however, by the back half of the 90's when they started leaning harder with tighter song rotations to compete with 93 Rock. In other words, Grunge, Grunge and eventually Nu Metal.
Personally as far as Alt Rock stations from that era go, I still preferred Live 105 and WDRE Long Island. Both stations tended to hold on to the 80's variant of Modern Rock much longer than its rivals. Only by 1995, during the height of Alt Nation, did both stations become less European focused, and more on Grunge bands. Even by as late as 1998, when Infinity took over Live 105 and brought in the staff from KOME, the station was more eclectic than many other stations doing Alternative at that time.
However once the staff some KOME moved over, and Live 105 added Howard Stern, that was when the wheels started coming apart. The station, for a brief period of time in the mid-2000's, did well under Sean Demery, who was from the legendary 99x in Atlanta. That was when the station started backing off the harder Nu-Metal, and focusing on the format more broadly. Unfortunately, since about 2006, Live 105 and stations of its ilk started oversaturating the airwaves with burnt 90's grunge gold, and new uninspiring pop bands.