Simple can mean several things including, but I'm sure not limited to, straightforward prose, characters we can understand very well, non-convoluted plots, etc.
Bad can be any of a huge range of things: flat characters, cliches, stereotypes, confusingly complex prose, plots with no flow, etc. I'm inspired by Gilead, so I'll take a crack at some examples.
1. Margaret walked into the room. It was pretty bare, the only thing that stood out the hideous zebra-print couch that Mrs. Barnes sat on.
or
2. Margaret got into the room. When Margaret got into the room, there wasn't a lot of stuff. But the stuff that Margaret saw was: a coffee table with lots of magazines like Cosmo and stuff on it, a statue of the Buddha, and a couch which had a print. The print was a zebra one. Aggie Barnes, Zack's neighbor's aunt, was on the couch.