Aubameyang played very well with Barcelona last season. He did not perform in any match for a long time. Even then he was able to play well enough with Barcelona. And I guess he will be able to perform well with Chesley as well.
Yep, Aubameyang became one of the Barcelona players who can perform well last season. Sadly, Barcelona signed Lewandowski and forget his contribution last season, then Aubameyang lost his position as the main CF in Barcelona lineup. It is another sad story in Aubameyang career, but I am sure he doesn't lose his spirit to play at his best form in a new club (Cheslea). There is no problem with Aubameyang skills, he is still a sharp or productive striker. So, he should have no obstacles to perform well with Chelsea team.
It's understandable why Barca released him due to the presence of Lewandowski. Having returned to the Premier League, Aubameyang is very happy. Cheslea is expected to be a good club for him, so he can deliver goals. Aubameyang's arrival may boost Chelsea's defense's confidence since it has been underperforming and deforming.