I've used Tiddlywiki in the past but I didn't quite like it (just my experience, I know that a lot of people use it). Switched to dokuwiki and after that to media wiki and I'm using this now, but as you can guess from the question, I'm trying to find/build something better for my needs ;).

How do you use Tiddlywiki - do you often search or do you know where did you put some note? What in your opinion are pros and cons of this wiki? What do you think is the biggest problem?

I just search. Between text and tags, I always seem to be able to find whatever I'm looking for.

Pros: It's easy to set up, and has been robust. I like it that it stores its data in the filesystem, in a location of my choosing.

Cons: It seems to use a somewhat unconventional formatting syntax. I find a lot of the terminology pretty opaque. Having had a few scary configuration-related incidents, I don't try to push it to do exactly what I want anymore.

I'm glad to have found Tiddlywiki and set it up, because at the time, I was storing notes in a thousands-of-lines-long text file, which just wasn't working. But I should probably resurvey the scene and see if there's anything better.

I recently started trying out both Tiddlywiki and Zim Wiki, and I'm starting to like Zim better. With Tiddly I didn't feel like I had stuff really organized. Of course you can search, but it didn't feel right for me.

With Zim everything is in plain text files, and it integrates with version control. This makes things more transparent (to me at least), and you can still use some useful things like filtering with tags, searching, todo-list overviews, etc.