Content---satisfied with what one is or has, not wanting more
John is content with the way his life is right now.
Happy--- delighted, pleased, or glad.
I'm happy to see you.
Enjoyable--- something that gives joy or pleasure:
I had an enjoyable time with you last night.
Joyful--- a feeling of great delight
Roxana's grandparents experience of feeling of joy when she plays the piano.
Delightful---something that gives a large amount of pleasure or enjoyment
Going to a zoo can be a delightful experience for young children.