I had a 3mm aneurysm but with family history of ruptures, my surgeon recommended that since it had vascular access, stent in my case, I should had it fixed, minimally invasive and high probability of success. That way I didn’t had to worry much about it, and in the unlikely case of failure clipping was always an option. That was 7 years ago, I had periodical checks and in 2020 he recommended I got a second stent, the first one hadn’t done the full job. Again fairly easy procedure. My MRAs since then show no leaks but just to make sure I will have an angiogram in a month and that may clear me completely.