I started reading Vinland saga as well, read a few chapters and it seemed fine, put it on pause a few months ago though. You say it takes a boring turn? Not worth reading on then?
It does for a bit, im not sure how much its progressed since, but reading up to that point was
definitely worth while, i might have to re-read it to remember everything and continue on. Atleast the writer makes mroe progress than Berserk, which is nice. Hah.