Server: Ghallanda.
Location: Denmark, Europe, CET = GMT+1
At 8pm (gmt+1) ran LH Tempest Spine with 6 man, me on a level 30 monkcher. One 3 second lag spike throughout, nothing otherwise.
At 830pm (gmt+1) ran LH Shroud with 6 man, me on a level 30 warlock. A few 1-2 second lag spikes + the usual 5 sec spikes when you finish a phase and run out into the open. Nothing important.
At 930pm (gmt+1) ran EN Defiler of the Just with 5 man, me on a level 30 warlock. Several minor lag spikes, 1-2 seconds each. A 3-5 second lag spike when the Wurm died.
At 10pm (gmt+1) ran EN Mark of Death with 3 man, me on a level 30 warlock. A few minor lag spikes, 1-2 seconds each.
When it lagged it was everyone in the group - as noticed in voicechat. Guild run so we had a keen eye for all lag to make this report.
Otherall, it was actually enjoyable to play DDO again for the first time in a long time. There is still room for improventment, definitely, but running the above raids with 3-6 man was playable to a degree where we had fun.