P&P is on the top of the recommended book list for English learners in China. My first English novel was it, but my experience was somewhat disastrous. Stumbling along the lines, I had great difficulty in understanding the plot, let alone enjoying it. It’s not the vocabulary that troubled me, but rather the syntax, and her way of thinking, which seemed too remote to me then. After some easier reads, like Hemingway and Wilde, my English gradually improved and I began to appreciate P&P. So I think it's definitely not an ideal book for English beginners.
Despite JA's keen observation and witty satire, sometimes I'm still slightly annoyed by her style-a bit redundant for my liking. Recently I've downloaded a huge JA audiobook collection (more than 17 G, each novel has multiple versions) and have just finished S&S (narrated by Susan Harker, who portrayed Jane in 95 P&P mini series).