I tried out the 1.0, and the app feels completely unfinished.
There's a PHP sugar built in to Espresso, but the separate PHP sugar you can download is a different version (with more features), so if you install it you end up with two PHP language choices and a third, PHP-HTML.
The auto-complete is horrible to try and work around. I find I inadvertently end up selecting various functions I didn't even want to enter - and when they're auto-inserted into the code, all of the available parameters for that function (and all of their extra brackets and readable syntax) are inserted as well, making for a lot of backspacing or selecting and deleting so it'll get out of your way so you can put your own parameter values.
The live preview is nice, but without a second monitor (or one larger than 1440x900, at least), it's still a pain to have to switch back and forth between windows.
I didn't test or try the uploading, downloading, syncing portion of Espresso, so no comments on that.
As of now I'd say hands down, Coda still takes the cake. I'm really hoping for Espresso to be the next big web development app; I'd love to support it. It needs a lot more work before it's ready, though.