In spite of really enjoying the program, I did let my regular sessions lapse along the way.
In the past month, I signed up for a one year membership at Lumosity and I'm so glad I did.
It was interesting to see the back-sliding I had (not too bad but still significant) getting back to the brain exercises there. My previous scores/history were still available to compare. I'm back to progressing now and my scores are happily going up again.
If you've never checked out Lumosity before, it's definitely worth a try. They have free trial (with no obligation or annoying spam!) before you commit to anything. I always appreciate that. And millions of users from around the world in all age groups too.
Brain-training can be fun. :<)
Let me know if you've given Lumosity a try. I'd love to hear what you think!