1. I'm happy that you like it.
2. I'm enthused that you like it.
3. I'm overjoyed that you like it.
4. I'm delighted that you like it.
5. I'm joyous that you like it.
6. I'm pleased that you like it.
7. I'm flattered that you like it.
8. I'm honoured that you like it.
I'm glad you have read it.