This is a beautiful, beautiful show with fantastic, intense, well developed characters and a very gripping story. It will fill you with joy, make you angry, break your heart and keep you on the edge of your sit so many times you'll lose count.
The last season wasn't as good as the rest of the series (in my opinion) and it's a shame. Maybe if it had covered the story that was so rushed in the last two episodes it would have been better, but still, looking back I just don't care.
Poldark is and will be one on my absolute favourite shows. I enjoyed it deeply and will watch in again in the future for sure, just to be back with the characters I came to love so much.