I think this is only my second work by George Eliot (the first being The Lifted Veil), and I didn’t find it as compelling as that novella. It’s basically a bit of a morality tale, as far as I can see: don’t be like this guy who pretended to be someone he wasn’t, because it will come back to you. And don’t fuck around with your family’s affections.
Overall, it’s more a little character sketch than a story, with predictable consequences. George Eliot’s writing doesn’t particularly shine here, and I can’t say I’m encouraged to read other books by Eliot.