I like it, it let's me do more stuff, better, in less time.

It has really good navigation features, CMD-e opens a list of recent files, shift-cmd-n (navigate) lets you open a file by regex, sorted by recency, hold down cmd and everything becomes a hyperlink so you can jump do a method definition, model, stylesheet, js file, partial, etc. Navigate quickly between a controller method and it's view. If the view doesn't exist, create it automatically.

An excellent debugger lets you set breakpoints anywhere, even in views. Current variables are nicely formatted, hashes can be unfolded, arbitrary code can be executed with cmd-f11.

cmd-r runs rake tasks, and it remembers your last task so if you're running the same task a lot it saves time. You can search within  rake results so no more piping to grep if you just want to check a route.

The editing experience for me is comparable to textmate, there are some minor annoyances like the Java based interface, but then some features of textmate annoyed me too.

Overall, I'd suggest you give it a week. If you like it, then buy it...

#1 Komodo Edit:   This is free and all things considered I believe it beats Notepad++ as it does support RHTML syntax.   

#2 Notepad++:   Even though it doesn't support RHTML, it's free and the plugin support is amazing.   It's it's the only text editor for Windows I've tried that when you highlight a word (like a variable or object, etc) will highlight all occurances of that string on the entire page you have open.  This comes in very handy to quickly see all instances of something w/o using "find".

#4 EM Text Editor:   This one is $10 cheaper than E Text Editor and much better (for example, E Text editor doesn't support zooming, and doesn't have an HTML bar (like a Dreamweaver HTML bar) like EM Text Editor does

#4 GVim (w/ Plugins):    The only flaw to this is it has a NASTY learning curve.   If you were up for it, your hands would never need to leave the keyboard.    I honestly don't have the time to learn some old school program whose power all lies within learning the keyboard shortcuts for everything.

Everything else (and I tried everything) isn't even worth mentioning (and I'm including the $50 E Text Editor).   Like InType isn't much better than Notepad and Explorer together.  There's not much else feature wise there.  I could care less about Macs or Textmate, and after trying E-Text Editor and can't imagine anyone liking it more than some of the other windows options unless they are comming off a Mac.   E Text Editor is also one of the only text editors I tried that didn't support zooming.    Some people don't care for zooming but I find it invaluable for programming (zoom in when your eyes are tired or your concentrating on something, zoom way out when you're looking for something).   Actually Notepad++'s ability to highlight all occurances of a string when you highlight a string and zooming are a really great combo.   
     
Basically, after trying everything, nothing pleases me (everything has some missing feature) and I'm about to buy Rubymine.

Heard it's very unstable though.

I'll usually use something like notepad++ on Windows for any scripting and development. Then again, I hardly ever use Windows anymore...

notepad++ is nice.

yes it is