Taking Twhirl for a Whirl

Sorry for the title but I couldn't help myself. I just started giving Twhirl a test drive. Here are some first impressions:

• I love that I can keep up with both Twitter and FriendFeed using the same application but I wish they were integrated into the same window
• There is something about the text that makes it tough to read. I tried changing fonts and colors but I'll have to experiment some more. It might be the line spacing
• I like the Growl like notifications
• Nice built-in search and shorten url features...no more heading off to tinyurl to post a tweet
  

I'm going to use this as my primary Twitter client for the next week or so and see if I get the urge to go back to Twitterrific.