Glad you got it back and at least the brakes are fixed. That's kind of important.
The turn signal issue sounds a bit annoying but may resolve itself.
The vibration is a problem. That does not sound right and you really need to get the car back to them to fix it. Sounds like a potentially expensive problem and one you want paid by warranty, not out of your pocket. Did they address that at all in any of your correspondence with them?