When using basic mouse placement, I tend to flick when reorienting, as a true gamer does. However, once I've reached the desired orientation, I'm unable to place.
For whatever reason, while holding the reorient key, you cannot place a brick until release. When I do release, my brick often (annoyingly) teleports wherever my pointer is.
It'd be nice to be able to place bricks via MOUSE1 and/or ENTER while reorienting.
Whatever minor gripes I have are far outweighed by the games boons. I hope you put money into marketing after main release.
(Blockhead approved.)