Saved my life, literally. I was in an exceptionally low place, actually feeling suicidal. But my darling Boycat snuggled up to me staring in adoration (and not a single rational thought) and I realised that with his mental issues he wouldn't cope with losing me, which pulled me back from the brink.
In general, the affect they have had on my mental health has been phenomenal. Stroking a cat calms me, and their purr has been proven to be at a frequency that encourages healing. Even after being here for nearly 8 years, sometimes the beauty of Girlcat catches me unawares & I catch my breath at her grace and elegance. Tobias's funny little ways make me laugh and lift my mood, and watching him progress from a terrified, somewhat aggressive ex-street cat into someone comfortable in his own skin and happy, playing like a kitten, is very rewarding.
There is a downside of course. Smelly poos & having to clean the litter tray. The fur Tobias sheds everywhere despite being short haired. Life logistics being based around the cat's routine & needs. The cost - vets, food, litter etc. And of course the total heartbreak when my beloved Boycat had to be PTS at only 8 years old due to terminal illness.
But I wouldn't have missed a day of my cats being in my life. Getting them was the best thing I ever did.