Flowering its heart out!

I don't know where this flowering cactus came from, could have been from a primary school Christmas sale - omg that was a long time ago. But in all that time it has looked pretty depressed and miserable. Suddenly with no change in care it started to perk up last year. This year is its first year to flower, and wow they were worth waiting for. They are large double flowers and oh so pretty. Cheers me up whenever I go in the room it lives in.