Oh wow, I just woke up to this. As a big multiclass fan, I'm not happy with this changes. Why throw away the requirements for multiclassing, like stats? What good does it do to multiclass to cleric with 8 wisdom? Even if you get stat bolstering stuff ( which should not be a common thing). And why make it more powerful than a single class ? That is just stupid. If I multiclass, I'm fully prepared to take the drawbacks, you get enough out of it as it is.
And changing the companions doesn't make any sense. Their classes are important for their stories. I'm ok with maybe giving Wyll a few levels in rogue or bard, but he should begin as a fiend warlock, because otherwise his whole story doesn't make sense. Same with all the other characters, except maybe Astarion, who imo is not really defined by his class.
Respec is ok for me. People not familiar with 5e might have specced themselves in a way, they don't have fun anymore. So that prevents them from having to start over.
"We are all stories in the end. Just make it a good one."