Despite relying on Tweetbot for iPhone religiously, I don’t use Tweetbot for Mac for precisely this reason. The black window chrome doesn’t gel well with the rest of OS X. The price is prohibitive too. If the price was lower, I probably would have bought it by now — at least to give it a test drive. However, I am loathed to pay £14 for an app that I know I won’t like that much.