I remember watching the premiere and not being wowed. In fact, I didn't tape it again. I didn't watch the show again until later in the first season, when SciFi aired a mini-marathon of Farscape when I was stuck home and trapped in a conference call in which I didn't have to speak. I watched two and a half episodes on mute with the captions on, and after that I opted to tape it again.
I think it really hits its stride in the last few episodes of the first season, keeps going strong in the second, meanders a bit in the third but ends extremely strongly, and is hit-or-miss for what I remember of the fourth (although the good episodes were very, very good).
The first season is pretty much getting the reader used to the rules. It gets much better later on -- or at least, I thought so.