I've used Cura 15.04 with my custom Reprap machines (a cartesian & a delta) and I'm very fond of it. Cura 2.1.0 doesn't seem to let me tweak printer profiles. I guess editing a json file isn't that rough. Will a machine profile editor be included eventually?
My 2M poly medical scan models take short lifetimes to slice and since I like to make many adjustments before saving the gcode, it gets painful. A manual slice button would be awesome, but it won't matter if I can't get it to generate for my machine either.
So far, a skull that took ~5mins to slice with Cura 15.04 looks to be ~2% sliced after 5mins on Cura 2.1.0.
Regardless, keep up the nice work gang! I've generally found Cura to be the best match for most of my requirements.
Host specs: OS X 10.11.2, 8x 2.8GHz Xeon cores, 26GB RAM, 1GB Radeon 5770 & 2GB GeForce GT 720. Dual stripe-RAIDed SSDs.