Yup, it's a million words long. The characters were obviously based on real people, which I found irritating because, unlike in Ulysses, none of them is attractive enough to make you want to know who he *really* was. Although I am enough of the world to know that unpleasant people exist, it has not been my experience that so many of them congregrate in the same places, year after year, until a bomb drops on a party and kills a good quarter of the cast, and you don't care and you never will.
It's useful as a history of the English schoolboy through most of the twentieth century, for none of the characters ever rise above that level of maturity and the women, if not evil, are invisible. I would really have like to know why Isobel married that dull, dull Jenkins (the series's narrator), but one never hears anything about her.
And folks, I was alive in the Sixties and I remember nearly all of it, but no one was ever quite that ridiculous.
If you want a good overview of English culture as it changed with the economic ups and downs, the wars and rumors of wars, the way of a man with a maid, this is so not it. If you want to read a very long book, try James Joyce. He may be cryptic but by God! he is interesting. Anthony Powell writes with the wit and charm of a mushroom and that's how you're left: musty, in the dark, and feeling like you've grown up in a compost heap.