I have been a DXE user for 2 years, and it saddens me to see that the project is now dead.
Basically, it gave me around 10 seconds more uptime on Ultraxion due to better showing and more accurate bars. I would usually click when RL told me at around 3 seconds, with DXE I clicked at 0.2 seconds, I never died.
So, I miss some things, well, most things from DXE. The yellow flash when it is me that need to click (MoP equivalent of Fading Light would be to get our of Spirit Realm on Gara?) the extra action button, the colors on the bars (different colors and so on, some where yellow, some blue, depending on what and who they could hit), and the extra digits on the counters on the bars. Having 1.1 second, nah, I want 1.11 or preferably 1.119. The more accurate, the better, to a certain point.
Main problem is DXE is dead, so this means I want DBM to act as much as DXE as possible. On a small side note, the DXE bars flow much more fluently over the screen than DBM, they move a bit, then just jump to the big bar position. I want them to just flow the whole way, one animation, and they all go on say, 6 seconds, as I am RLing, and 6 seconds is when I give 5 second timer over TS.