I am only checking out Solasta because I have pretty much exhausted all my current interests in this game. The story of this game is great and I love exploring all the D&D stuff that I rarely saw in adventure modules (I think I saw Druegar once in the past 6 months of Adventure League modules). I am not a purist by any means, I started playing pencil and paper DND for the first time several months ago and just went really hard on it (Daddywarbux discord server for anyone that may play there). I dont consider myself an expert in D&D, I loved the planescape: Torment game more than the BG or NWN games.
I will put more time in on different classes once they setup multiplayer and tweak the classes that are already in game. You cant even really use Mage Hand yet... and the Arcane Trickster's mage hand does absolutely nothing that it is supposed to do from 5e. Once they make some improvements, Ill come back and check em. However they can only pump out patches so fast and I seriously doubt we will see patches that add content or tweak the spells for a long time... hopefully they fix Magehand so that it can carry stuff, (and so that Arcane trickster can use it to pick locks/pockets nad disarm traps).
I really started playing 5E to get hyped for this game. I am probably going to enjoy whichever game gives me the most character customization options because thats what I really loved about DND, the flexibility in character builds are vast. If one game has multiclass and the other does not, it will be an easy choice for me... a good story only has so much replay value... custom builds pickup where the story leaves off