Like everything, its complicated.
Not really. No more complicated than any vaccine for any potentially fatal disease.
More horses mouth stuff (live Webinar at work with our lead COVID researcher happening right now) for the clot-phobic: You will ultimately catch the coronavirus over the next 12-24 months. Have a vaccine, it's the best way to avoid adverse effects of COVID.
I stand by my statement that there is absolutely no excuse for not getting a vaccine, for not signing up for either vaccine, our 22 year old son is going the GP route for AZ. I notice the people I called out on this (one of whom got all antsy about me making assumptions) have not responded that they have signed up for the vaccine, and have not provided a plausible reason. If you haven't taken action, you are a big part of the problem.
Lead researcher also said "doses were being discarded, it's absolutely appalling" and also said "if you're over 50 and waiting for Pfizer, you are taking a vaccine off a younger person"...
I really like this frank and firm information and feel privileged to be able to get it, I hope passing it on to my community here is useful to you.