Haven't had any issues at all, except for the Inventory Grid View add-on causing the in-game settings menu not to pop up post patch. I had to replace IGV with GridList to get it back to normal.
Yesterday evening, PC/NA I had a lot of the described problems. Slow loading between zones occasionally, very slow character load, delays in logging out, disconnects. Not 100% of the time but it tripled the time I needed for craft writs.
This morning on PC /NA, only thing I noticed was when queuing for Imperial City, it took a long time to get the prompt to join. Otherwise things were normal.