This is a very casual game, but very enjoyable and quite addictive.
There wasn't anything in the game to ruin what it was. I thought it might be ruined at the first battle by going in to a dumb mini game or something, but it stays true to itself the whole way through, and doesn't ever try to be anything that it's not, which I really appreciated.
You buy or trade items for quests, you can trade items for cash. To get your health back up, you can camp if you have certain food, or pay cash for a room. There's stuff to collect, and hidden objects, hunting, fishing, herbing. All of which fit the mood of the game perfectly.
I bought this in the steam summer sale, but given what £5 will buy you elsewhere these days, I'd say it's probably worth it's full price.
I don't think there's much replay value to it, but it's entertaining and addictive enough to keep you going till the games end without getting bored.
All achievements are do-able on one playthrough, just check to see what you need to complete, and you won't have to play it twice, which I also appreciate, especially since it's story based, I don't like to feel forced to play a game twice if there's no real replay value, just for achievemements, so it's great in this regard as well.