Unlike some other reviewers, I would much rather read subtitles than have anything dubbed into English.
Yes, some of the situations are ridiculous and some of the acting is a bit poor but considering some of the stinkers of series I've attempted to watch, this is pretty okay.
Don't go in expecting anything more than a formulaic "solved in one episode" series and you'll be pleasantly surprised. There are on-going storylines that are quite good and a few peripheral characters are acted well. The police characters are not amongst them, sadly.