BG3 has cinematics and aesthetics done completely well. For a dnd game they have translated that aspect really really well, many of the creatures look like how they are supposed to and everything looks fairly good to where graphical glitches actually are glaring cause everything else has quality.
But mechanics BG3 is not even close to Solasta, rather it is clearly incomplete. Most everything is clearly not finished and needs time and effort put to working on it. BG3 has the potential to be the best DnD game if they move closer to 5e mechanics and finish the mechanics.