First trip to Romania - itinerary feedback and suggestions

Hello everyone!

I am planning on traveling to Romania this August for the first time, and I am super excited! I will have 2 full weeks, so I'm hoping to get a good feel for the country and experience as many amazing things as I can.

I am not planning on renting a car, instead traveling by train or bus to each city. My current itinerary is largely Transylvania based, but I'm looking for feedback on the route I'm planning, how much time to spend in each place, and maybe any suggestions for other cities or things to see.

I do think I would like the cities of Iasi, Oradea and Timisoara, but I'm not sure if they're a little too far out of the way and I don't want to be traveling to a new city every single day. I also would like to experience some of the smaller rural villages in places like Maramures or Bucovina, but I am wondering if it is tough to do without a car or an expensive private tour. Any feedback for this is helpful and appreciated!

Here is my current plan.

DAY 1: Arrival in Bucharest (light sightseeing)

DAY 2: Bucharest

DAY 3 : Bucharest (possible day trip)

DAY 4: Travel to Sinaia, visit Peles castle and surrounding areas, overnight in Sinaia

DAY 5: Travel to Brasov, sightseeing & overnight there

DAY 6: Brasov

DAY 7: Brasov (day trip to Bran Castle, Rasnov Fortress, Bear Sanctuary)

DAY 8: Travel to Sibiu, overnight there

DAY 9: Sibiu

DAY 10: travel to Sighisoara, sightseeing

DAY 11: Sighisoara

DAY 12: travel to Cluj, sightseeing & overnight there

DAY 13: Cluj (day trip to Corvin Castle, Alba Iulia, Salt Mine)

DAY 14: Cluj (overnight train back to Bucharest for return flight)

EDIT: Incorrect location name