I under went 6 months of ect treatments 2004-2005. Treatments started out 3 times a week then dropped to 2. Ended up with long and short term memory loss. Lost my youngest son's entire life time, 23 years. I have heard that the memory loss if it happens is not as extensive as mine.
Another fun fact.....it is not uncommon to have a relapse, which I did.
Now I've started the process for VNS. During my interview with a rep from the manufacturer they asked if I had gone through the ect treatments. I don't know why they asked but having the treatments maybe a requirement. It's going to take several weeks before I find out if I can start fighting with my insurance company.
There are thousands maybe millions of people that have under gone ect treatments with few ill effects. I'm one of the exceptions. It is also hard when you have other factors which could influence your decision.

Good Luck what ever you decide.