I have no experience with electric pressure cookers so I can't advise you with your choice. I've always had the stovetop variety.
After my trusty Revere one of over 40 years service bit the dust, I bought this
Kuhn Rikon set. Love, love, love it, especially since I have the option to use the smaller pan when I'm not pressure cooking a huge quantity. The smaller vessel is perfect for the two of us.
I paid nothing near what this set shows on Amazon. I bought the set quite a few years ago directly from Kuhn Rikon when they offered a special "deal" that also included free shipping. I've never been sorry.