They lock you in to a hideous 2yr contract will not let you share any sceens to fellow users in your office, ie 3 people looking at the 4 screens will result in law suit threats from them, are useless on their refusal to answer a phone when trying to get help -"oh you MUST use the messenger" - it takes so long to explain the issue you have on there and eventually after pages of text they eventually ask for your phone number to call you, like you told them to in the first place. They insist on logging you out after I think 18hrs of use a day for "updates" which is infuriating as you can't stop it doing it, just when you need it.
I still have 10s of complaints about their slow data releases, "we will look into this and get back to you with a full explanation" Never happened, years I've waited. And now sadly I believe Reuters terminal are looking to follow with the long contractual tie in. I have made good money off some headlines posted on there over the years, I have reuters too but I do hate dealing with Bloomberg and their attitude. It's not like you can threaten to quit their service and they act accordingly to knowing that.