I had a hard time with Flynn's early run, to be honest. Yes, the comic quality increased pretty greatly overall, but in an attempt to go the opposite way of Penders, I think that he skewed a little TOO silly at the very beginning. Though he eventually found a very nice medium between silly and serious eventually. But Croctobot (the first robot Sonic fought under Flynn's writing) just didn't do it for me. Things REALLY picked up when it came to the Scourge story arc, going to Moebius and whatnot. Evil Amy was pretty terrifying. After that is when things really picked up quality-wise, though.