Very much its own UI that didn't follow (the admittedly somewhat loose) established conventions. Right-clicking to select and other weird stuff. I got used to i

Very much its own UI that didn't follow (the admittedly somewhat loose) established conventions. Right-clicking to select and other weird stuff. I got used to it but it really required a lot of playing around to begin to associate the user-model with my prior experience in 3D software-land. I remember thinking at the time that, had I had no prior experience to build on, I probably would have given up on it.