With the introduction of patch 1.36:
Game lag in most areas has gotten considerably worse. (Connection speed tests are measuring 90+mbps and other online games are playing fine)
Areas with lots of players doing dolmens causes game crashing.
Skills/abilities not responding to button presses.
Skills/abilities will do the casting animation, but then nothing happens (without getting interrupted).
Some skills/abilities timers seem to be counting down too fast. (Sorcerers - Hurricane for one example)
Game was pretty frustrating following Summerset release and now with 1.36 is unplayable...