It's an exceptionally nice program, especially since it's free. Small ads on the free one, but they're pretty ignorable for such a functional app for free. They even have a surprisingly-accurate text scanning for images, though it must be uploaded, and thus eats up some of your (40MB for free) monthly upload quota.

But the free version has no SSL on uploads (& downloads?), and it has horrendous import / export capabilities. Essentially, it's an insecure or expensive lock-in system, despite claims I've seen a few places from the company that they value openness. A nice lock-in, truly, but no freedom to leave without huge cost means I'm not touching it.

In short, if you find $45/year worth it, and never expect to leave, it's excellent. Otherwise, I'm not touching it.

Sync's my notes to my iphone and my computers. I like it.

I've got evernote on my laptop, desktop and iphone. You can't beat it for syncing ideas hassle-free.

Great for jotting down ideas for lyrics, poetry, recording voice notes, etc. My only request would be for a folder structure, tags are good, but it would be great to be able to file notes away just like emails.

New version fixes snow leopard problems

Would be nice if it wasn't super buggy.

Adding pages from Safari's latest versions is very buggy: it loses images, formatting, reflows page structures, sometimes the resulting page in Evernote looks completely different to the one in Safari (apart from the text, that is).
For simple notetaking there are freeware apps without annoying ads built-in.
For web page archival there are much better apps (paid) like DevonThink, Together, Yojimbo that give perfect results and are much faster.

I like it and I use it on OS X, WinXP, and iPod touch. It's become an essential part of all kinds of workflows. I'm still using the free version. The ads are not a big deal, for me, as I get a lot of use out of the product and they have to monetize it somehow.

Things in my previous comment being said, I have found Evernote to be useful and an enhancement to my productivity, although I have not been using it enough to warrant a subscription. I also find the (rather unobtrusive, IMHO, once you get over the initial annoyance) ads a small price to pay for the free usage and reassurance the service will not go away one day taking my notes with it.

Seeing some of the comments on this page I think it would help to clarify a few things in the description and license notes of the app:
* It is a desktop client to a web service, not a standalone app.
* The service exists in two flavors: free (with usage limits) and pro (by subscription).
* The desktop client is free, but will show ads in its lower left corner if the free service is used.

When they introduced the ads two months ago, they were only about upgrading your account, but now they're mostly about unrelated things. Stopped using it today after trying out a new update: the service was very useful, and I might have upgraded once I hit the usage limit, but there's no way in hell I'd ever support adware on OS X, my mac is not some sort of trash for them to litter.