At $20k+ per annum cost I wouldn't expect anything less. That said we Europeans have been asking for non American date format support for years but it's a won't fix. So I guess the fee still isn't large enough.
A big complaint I have is why can't I keep the data I download off the terminal for an exchange if I'm already paying the exchange fees in addition to bloomberg's annual fee? It's like renting data. Also it makes it difficult to switch to a competing product.
Another mild annoyance is the left field approach their reps have about the tech that is visible when they make their regular visits to your office. Your company might have invested in developing data screens ,(outside of Bloomberg) and some months later those views mysteriously become available as new functionality for all users. It's even worse if you use their API; eg, you might write a private back-testing indicator specific to your market and within a day or two it appears in their public indicator list.