Oh, it's FULL of flaws. How about, not having control over where support goes? or being able to select the lateral distance support is from the model?!? Add those to the things I've already listed.
Ultimaker's flavor of Cura is pitiful. SO SLOW!!!! takes forever to purge, set height, and table level it's frustrating.. the table is mechanically level, turn off the auto-level! And spewing the purge all over the inside of the machine, later trapping it under the table. I had a Stratasys machine 20 years ago that caught all the purge in a box to be easily emptied later. I shamelessly copied that for my personal machine.
It'll take some time to get the FFFs right but I'm wholesale changing R&D machine at work to S3D.