By the end, he barely even APPEARED. It was almost exclusively the Morgan and Edwina show, and since I utterly despised both of those characters ...
One of my favorites is when Plastic Man has a mouse in his house, and he just spends 22 pages trying to get this mouse out of his house in various strange ways.
Which was easily one of my least favorite issues, since I would have found it dull, unimaginative and repetitive even as a grade school-aged child.
Plastic Man's lament with dialogue spoofing Jeph Loeb's Superman's dialogue in Superman/Batman #13.
While I admit that I enjoyed some of the pot-shots against then-current DC continuity (as well as against Bush, via Woozy impersonating Luthor), in large part, they were endemic of the problems with the book as a whole, in that it had no idea who it was for, or what it wanted to do.
It was a book in which the title character made way for a stereotypical "strong female character" so utterly one-note and anti-charismatic that she might as well have been Mark Waid's Sharon Carter (and as a bonus, Morgan was completely rewritten to not be the villain of the first story in which she appeared, literally at the last minute, making her even more of a poorly conceived cipher), plus a sulky and equally stereotypical goth girl, who appears to have been drawn from all of five seconds of research, consisting of glancing at the Hot Topic site.
It was a book that saw fit to devote an entire issue to a "Plastic Man versus a mouse" plot so inane that even the average young Tom & Jerry viewer would have found it plodding and weakly-written by comparison, but then followed it up with issues which hinged entirely on incredibly obscure points of DC continuity (to the point that I found Baker's commentaries on DC self-indulgent EVEN WHEN I AGREED WITH THEM, which I mostly did), plus issues in which rape and child abuse came to the fore (the one-liner about Dr. Light and rape - "It's like it's his new power now" - was grimly accurate, but did not belong in the Plastic Man book, and the scene where Morgan nearly BEATS Edwina made me go WTF, especially since it was in the context of both characters already being portrayed as utterly unlikable in just about every way).
As such, artwork aside, the book failed on pretty much every single front that it's possible to fail - even as a kid, I would have been insulted by how dumbed-down and mono-dimensional its characterizations and plots were, and even as an adult, I felt skeeved out by scenes like seeing Morgan nearly SLAP her own adoptive daughter.