It's tough to judge, since it's only the first episode and just sort of starts laying the groundwork. The original series took about 4 or 5 episodes before things started really coming together.
This show definitely feels smaller in scope.
The joust seemed kind of pointless other than to inject some gore into the episode.
Nothing shocking so far. The first episode is pretty predictable in how it plays out. But, I did find myself getting drawn in a bit more as the episode went on.
Other than all the wigs looking goofy (I'm not sure if Daenerys wore it well, or if it was because there were only two characters that used them in the original), there weren't any red flags in this. I'll keep watching.