Nope. Pretty certain I've already addressed this, but by all accounts I've heard, it makes Source Filmmaker seem stable and complete.

Among other things, it apparently has no scripting support whatsoever - a massive drawback for me, since I use scripts extensively. To say nothing of the fact you have to buy Half-Life Alyx in order to access it. For someone who doesn't have VR nor intends to get it, $60 is a pretty hefty price for the average hobbiest to pay to an unfinished program. Not really a concern for me, but it is a point worth considering nevertheless.