It's not a whitewashing that the description makes it out to be. Tocequville is working for the July Monarchy and so he was interested in how liberal democracy in America ~~suffered from~~ compared to the aristocratic structure of post-Napoleonic France. He admires the individualism of the frontier settlers while also pointing out that the US constitution has no actual mechanisms to enforce said liberal democracy when faced with an executive that doesn't respect the separation of powers.

I've read it but I mean everything he wrote is just kinda known to you already if you have even a passing interest in 19th century American history. It's interesting seeing a foreign perspective but also I don't know if you're missing much. Like hey did you know Americans have a bunch of newspapers and also have a ton of competing churches and also rich people have a bunch of slaves and also native Americans are excluded from society.

honestly my only familiarity is from excerpts in Liberalism: A counter-history by losurdo and it didn't seem too appealing but it may kind of be an interesting historical perspective on the USA far before its hegemony

I read it years ago and remember exactly 0% of it

It is probably an easy read. In college we read some passages from it and thr passage I remember was him talking about how Americans are anxious all tbe time and work too much.