It gets better after season 1, IMO.
Plan A) Watch S1, looking for things that the show might tie back to further on. Keep in mind that it will get better, fairly quickly.
Plan B) Jump to S2, enjoy the show, go back to S1 once you've got your interest and want to see how it all started.
Plan C) Watch "in the Beginning" first, then decide whether that was of enough interest to you to pursue one of the other plans.
I still haven't seen a good chunk of S1. I know there's a lot in it that's relevant to later episodes, I just don't -care-, and I think I've seen the episodes that particularly merit being seen.
Hell, I basically got into the show in mid-S3, when my friends were already addicted and I'd be hanging out with them and completely disinterested. All it took for me was the appearance of a particular ship design, at which point I went all, "What the hell is
that?" And I never looked back.
Of course, if you think opinions of S1 are divided, just wait until people start talking about the stuff that followed the show.
