Out of interest, how much has it cost you to convert, and do you feel it's been worth it?
I only ask as I'm considering the same upgrade, but am balking at the cost.
Graham
Hello bit of a longer term report. In terms of how well they work, really good is the answer although you would expect that as generally speaking hydraulic discs tend to get good reviews across the board.
I particularly love that i can take my wheels out put them back and the self adjusting nature means no rubbing. With cable discs i always found preventing rub a problem.
Now to the bad bits. The levers themselves are larger than 5800 105, I knew this before I bought them. I don't consider myself to have small hands so the size hasn't overly bothered me. What has is that the design of the hood where the slot for the lateral movement of the lever sits where my thumb naturally sits when on the hoods and is irritating. It means my thumb is uncomfortable and if the plastic were any sharper it would cut. Difficult to explain so when I have as moment I might try and provide a picture.
I still think it was a good purchase. If you can afford to spend more though you might want to consider the Ultegra style hydraulics which I think are somewhat more like the cable operated levers on design.