Thankfully, after the most recent patch, the PTR is playable again – with all mods loaded and graphic effects at maximum, the framerate is still decent.
Unfortunately, I missed a lot of the Shattered Sun daily content; all the phases are now open. I’ll still do an overall guide to the SSO dailies, and I hope to have it ready for 2.4’s release, but it’ll take a bit more research than just logging onto the PTR and reading the quest text. So, expect the 2.4 updates to be a bit sparser from now on, as all the dynamic content finished up while the PTR was still unplayable for me.
A shame – but I sitll have it to look forward to on live.