If it’s got you already, then it’s most certainly worth persisting with. It is a very slow burn, and the pacing of the first season (particularly the first half of it) is, at times, painfully slow. It does pick up the pace, but never by a considerable margin. It’s a slow show.
It does get mighty friggin weird and wacky though in the last two seasons, which I loved. (Not everybody did though)
As for your partner… I dunno, it seems to be a show that you’re really really into, or you’re really really not. If they can get to the second half of season 1, they might get sucked in.