Please don't take this the wrong way, because it's just how i am, but personally i can't even begin to use an application with icons (both the main application icon, and the toolbar etc icons) that IMHO (i.e. a personal preference) look less pretty than what i would expect from a modern OS X application.
I'm sure some of you think the icons look awesome though. :)
Just saying!

Wallet is awesome! In fact, i just used the "Autofill With Wallet" function of the safari extension to login to macupdate just now, on my new iMac running lion. I'm quite impressed of how often it seems to "just work" actually. In my experience, it also offers to save the login information most (if not all) of the time, when a website haven't yet been added to wallets database.
The developer just released an update to support Lion, which shows Wallet is still in active development. In fact, it's updated quite regularly it would seem. Not so often it's irritating, but often enough for bugs to be ironed out, and to show it's still in business :)
I have it synched to my iPhone, also running wallet, which has saved me a couple of times, when i needed access to a few sites that are password protected, on the go.
Wallet has a perfectly passable application icon, and the UI in general is quite well put together IMHO. Good work mr developer :) Looks is important, at least to me!
Last, but not least, this is one of the very few applications that offer a trial/demo of the application, before buying it from the MAS. Very nice IMHO! I wish more developers did that.
Perhaps the developer doesn't answer support emails, i wouldn't really know, because i haven't yet had the pleasure of sending him/her/them a support request. So i can't help you there, i'm afraid!
In short, if you can be without firefox integration, and looking for something cheaper than 1password, wallet is certainly worth a try IMHO.

Need more work. Personally, i bought Fluid instead, and created a SSB (site specific browser) app to do what all these face* apps do, but better IMHO...

Love the function, hate the fake "native cocoa" UI elements. These guys should do a proper OSX port of the GUI as far as I am concerned. Even the fake rounded window corners fail if you bring anything else than the desktop window behind the main window. Try it, you'll see.
Still, it works flawlessly. I wish you could throttle the upload bandwidth manually though, because spotify relies on p2p (bittorrent) tech in the desktop app (not the mobile one).
One thing that would be nice would be a recommendation system (such as last.fm has), and more radio stations/features. I want to discover music as much as listen to it.

Transmission is an example a cross-platform application, done right. Not only right, but excellent. It's good looking (no whacky, or non standard ui tricks), well thought out, and does what it is supposed to do well.

My only wish is that it doesn't become bloated over time, as some products do. If it aint broke, dont fix it. What i mean by that, is that if people want (exotic) features implemented, please consider putting that functionality in a new product, and let us keep the current transmission in it's current state.