I guess time will tell, tho i think these 2 worlds are quite difficult to merge, the DOS and the DnD.
If you look over the different posts in this forum, you'll see most complains being exactly what you said : people find the combination between DOS and D&D not working well and ultimately the negatives it brings outweight the positives.
In my opinion, Larian should focus on either a strong DOS based system, or a strong D&D system. But you can't have tons of surfaces/combos/spell scrolls for all classes to use and call it D&D based. That's close to marketing bs.